10th Grade English Test Worksheet from Campo Verde Bilingual School, 2022, covering grammar topics like connectors, modals of obligation, and "too" or "either" usage.

Solution and Explanation

The task consists of three series, each focusing on different aspects of English grammar. Let's solve each series step by step.

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Series I: Complete the sentences using the correct connectors.

#### Instructions: Choose the appropriate connector (e.g., "so," "because," "but") to complete the sentences.

1. I was late for class this morning … the bus was late.
- Correct Answer: b) because
- Explanation: The reason for being late is that the bus was late. "Because" connects the result ("I was late") with the cause ("the bus was late").

2. I usually go home at four o'clock, … then I watch TV for an hour.
- Correct Answer: a) and
- Explanation: The two actions ("go home" and "watch TV") are sequential and connected in a straightforward manner. "And" is used to join these related actions.

3. My classmate studies very hard, … she always gets good grades.
- Correct Answer: c) so
- Explanation: The effort put into studying leads to good grades. "So" indicates a result or consequence.

4. Thomas was really hungry this morning … he didn’t eat breakfast.
- Correct Answer: c) because
- Explanation: The reason Thomas was hungry is that he didn’t eat breakfast. "Because" connects the effect ("hungry") with the cause ("didn’t eat breakfast").

5. We went to the airport, … we forgot to bring our suitcases.
- Correct Answer: a) but
- Explanation: There is a contrast between going to the airport and forgetting the suitcases. "But" highlights this contrast.

6. Cathy decided to order spaghetti, … Gary decided to order a pizza.
- Correct Answer: b) and
- Explanation: The decisions of Cathy and Gary are presented as separate but related actions. "And" joins these two independent choices.

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Series II: Select the correct modal of obligation on each sentence.

#### Instructions: Choose the appropriate modal verb to express obligation or necessity.

1. Teachers can't / don't have to wear ties.
- Correct Answer: don't have to
- Explanation: This sentence implies that wearing ties is not mandatory for teachers. "Don't have to" expresses lack of obligation.

2. Students needn't / have to study.
- Correct Answer: have to
- Explanation: Studying is typically considered an obligation for students. "Have to" expresses necessity.

3. Students mustn't / have to copy exam answers from others.
- Correct Answer: mustn't
- Explanation: Copying exam answers is prohibited. "Mustn't" expresses strong prohibition.

4. Students can / must take extra classes if they like.
- Correct Answer: can
- Explanation: Taking extra classes is optional. "Can" expresses permission or possibility.

5. Students needn't / must show respect to others.
- Correct Answer: must
- Explanation: Showing respect is an obligation. "Must" expresses strong necessity.

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Series III: Fill in the blanks using "too" or "either" to complete the sentence.

#### Instructions: Use "too" or "either" to complete the sentences based on the context.

1. I am a student. You are a student, _______.
- Correct Answer: too
- Explanation: "Too" is used in positive sentences to indicate that the same situation applies to another person. Here, both the speaker and the listener are students.

2. I won’t go to the movies tonight. My sister won’t, _______.
- Correct Answer: either
- Explanation: "Either" is used in negative sentences to indicate that the same situation applies to another person. Both the speaker and the sister will not go to the movies.

3. I wasn’t home yesterday. My parents weren’t, _______.
- Correct Answer: either
- Explanation: Similar to the previous sentence, "either" is used in a negative context to show that the same situation applies to the parents as well.

4. They like animated movies. We do, _______.
- Correct Answer: too
- Explanation: "Too" is used in positive sentences to indicate that the same situation applies to another group. Both "they" and "we" like animated movies.

5. Mary doesn’t like sweet food. Her friends don’t, _______.
- Correct Answer: either
- Explanation: "Either" is used in negative sentences to indicate that the same situation applies to another group. Both Mary and her friends dislike sweet food.

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Final Answers

#### Series I
1. b) because
2. a) and
3. c) so
4. c) because
5. a) but
6. b) and

#### Series II
1. don't have to
2. have to
3. mustn't
4. can
5. must

#### Series III
1. too
2. either
3. either
4. too
5. either

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Boxed Final Answer

Series I:
1. b)
2. a)
3. c)
4. c)
5. a)
6. b)

Series II:
1. don't have to
2. have to
3. mustn't
4. can
5. must

Series III:
1. too
2. either
3. either
4. too
5. either

\boxed{See above}