English language worksheet featuring pronunciation and grammar exercises.

Let's solve the problems step by step:

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#### Question 1: Choose the words which have underlined parts pronounced differently (0.5pt)

##### Part 1:
- A. wet market
- Pronunciation: /wɛt/
- B. prefer
- Pronunciation: /prɪˈfɜːr/
- C. plentiful
- Pronunciation: /ˈplɛn.tɪ.fəl/
- D. get
- Pronunciation: /ɡɛt/

The underlined part in each word is the "e" sound:
- In A. wet, the "e" is pronounced as /ɛ/.
- In B. prefer, the "e" is pronounced as /ɪ/.
- In C. plentiful, the "e" is pronounced as /ɛ/.
- In D. get, the "e" is pronounced as /ɛ/.

The word with a different pronunciation for the underlined part is B. prefer.

Answer: B

##### Part 2:
- A. danger
- Pronunciation: /ˈdeɪn.dʒər/
- B. angry
- Pronunciation: /ˈæŋ.gri/
- C. language
- Pronunciation: /ˈlæŋ.gwɪdʒ/
- D. passage
- Pronunciation: /ˈpæs.ɪdʒ/

The underlined part in each word is the "a" sound:
- In A. danger, the "a" is pronounced as /eɪ/.
- In B. angry, the "a" is pronounced as /æ/.
- In C. language, the "a" is pronounced as /æ/.
- In D. passage, the "a" is pronounced as /æ/.

The word with a different pronunciation for the underlined part is A. danger.

Answer: A

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#### Question 2: Choose the best answer A, B, C, or D (2.5pt)

##### Part 1:
- He is strong enough ………… this box.
- The sentence requires a verb form that fits grammatically. The correct form here is the infinitive "to lift," as it completes the phrase "strong enough to do something."

Answer: C. to lift

##### Part 2:
- I like ………… Chinese very much.
- The verb "like" is followed by a gerund (-ing form) when expressing a general liking for an activity. Therefore, the correct answer is "studying."

Answer: D. studying

##### Part 3:
- He used to ………… the guitar when he was a student.
- The phrase "used to" is followed by the base form of the verb (infinitive without "to"). Therefore, the correct answer is "play."

Answer: A. play

##### Part 4:
- My brother speaks English very ………… .
- The sentence requires an adverb to describe how my brother speaks English. The correct choice is "fluently," as it is an adverb and fits the context.

Answer: C. fluently

##### Part 5:
- Hoa's pen is different ………… mine.
- The correct preposition to use with "different" is "from." The phrase "different from" is idiomatic in English.

Answer: A. from

##### Part 6:
- Alexander Graham Bell was born ………… March 3rd, 1847.
- When specifying a specific date, the preposition "on" is used. Therefore, the correct answer is "on."

Answer: B. on

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Final Answers:

1. Part 1: B
Part 2: A

2. Part 1: C
Part 2: D
Part 3: A
Part 4: C
Part 5: A
Part 6: B

Boxed Final Answer:
\[
\boxed{B, A, C, D, A, C, A, B}
\]