English grammar worksheet focusing on adverbs and adjectives for language learners.

Task: Circle the adjective or adverb to complete each sentence.

#### Explanation:
- Adjectives describe nouns or pronouns. They answer questions like "What kind?" or "How many?"
- Adverbs describe verbs, adjectives, or other adverbs. They often answer questions like "How?" "When?" "Where?" or "To what extent?"

Let's solve each sentence step by step:

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1. My classmate is a ______ person. [nice / nicely]

- Analysis: The word修饰 "person" (a noun), so we need an adjective.
- Answer: nice

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2. I can speak Spanish very ______. [good / well]

- Analysis: The word修饰 "speak" (a verb), so we need an adverb.
- Answer: well

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3. Katrina took a painting class, so she can paint ______ pictures. [beautiful / beautifully]

- Analysis: The word修饰 "paint" (a verb), so we need an adverb.
- Answer: beautifully

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4. Mr. Smith looked ______ at me when I arrived late. [angry / angrily]

- Analysis: The word修饰 "looked" (a verb), so we need an adverb.
- Answer: angrily

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5. Of course, I was ______ when I got an A+ on the exam. [happy / happily]

- Analysis: The word修饰 "was" (a linking verb), so we need an adjective.
- Answer: happy

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6. The music is too ______. Please turn it down! [loud / loudly]

- Analysis: The word修饰 "is" (a linking verb), so we need an adjective.
- Answer: loud

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7. My friends all tell me that I sing ______. [bad / badly]

- Analysis: The word修饰 "sing" (a verb), so we need an adverb.
- Answer: badly

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8. The thief ______ took the money and walked out the door. [quiet / quietly]

- Analysis: The word修饰 "took" (a verb), so we need an adverb.
- Answer: quietly

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9. The cat waited ______ for the mouse to come out of the hole. [silent / silently]

- Analysis: The word修饰 "waited" (a verb), so we need an adverb.
- Answer: silently

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10. My cousin always walks very ______. [quick / quickly]

- Analysis: The word修饰 "walks" (a verb), so we need an adverb.
- Answer: quickly

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11. The work that my boss gave me was ______. [easy / easily]

- Analysis: The word修饰 "was" (a linking verb), so we need an adjective.
- Answer: easy

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12. Thomas is very ______. He always helps me. [kind / kindly]

- Analysis: The word修饰 "is" (a linking verb), so we need an adjective.
- Answer: kind

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13. The little boy ______ kept the cookie for himself. [selfish / selfishly]

- Analysis: The word修饰 "kept" (a verb), so we need an adverb.
- Answer: selfishly

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14. The man ______ opened the door and looked inside. [nervous / nervously]

- Analysis: The word修饰 "opened" (a verb), so we need an adverb.
- Answer: nervously

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15. The fireman ______ rescued the people from the burning house. [brave / bravely]

- Analysis: The word修饰 "rescued" (a verb), so we need an adverb.
- Answer: bravely

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16. I ______ offered to help my friend study for his exam. [happy / happily]

- Analysis: The word修饰 "offered" (a verb), so we need an adverb.
- Answer: happily

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17. She is the most ______ person I know. [polite / politely]

- Analysis: The word修饰 "person" (a noun), so we need an adjective.
- Answer: polite

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Final Answers:

1. nice
2. well
3. beautifully
4. angrily
5. happy
6. loud
7. badly
8. quietly
9. silently
10. quickly
11. easy
12. kind
13. selfishly
14. nervously
15. bravely
16. happily
17. polite

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Final Answer:

\boxed{
\begin{aligned}
&1. \text{nice} \\
&2. \text{well} \\
&3. \text{beautifully} \\
&4. \text{angrily} \\
&5. \text{happy} \\
&6. \text{loud} \\
&7. \text{badly} \\
&8. \text{quietly} \\
&9. \text{silently} \\
&10. \text{quickly} \\
&11. \text{easy} \\
&12. \text{kind} \\
&13. \text{selfishly} \\
&14. \text{nervously} \\
&15. \text{bravely} \\
&16. \text{happily} \\
&17. \text{polite} \\
\end{aligned}
}