Unit 3 Safety测试卷（含答案）

D. them 2. Plenty of letters are dealt with ________ every day. A. at one time

B. in time

C. at times

D. at no time 3. Lily, could you please pass me the________ I want to cut the apple. A. pen

B. pencil

C. book

D. knife 4. Steve isn't as ________ as Kelly. He often makes mistakes in his writing. A. careless

B. tidy

C. careful

D. difficult 5. Earthquakes always happen________, so it is difficult to know when they come. A. hopefully

B. suddenly

C. usually

D. luckily 6. It's getting hot, and you can ________your coat. A. put off

B. take off

C. set off

D. get off 7. —Roy never likes junk food. —Neither do I. That's why I'm becoming ________ now. A. healthy and weak

B. healthier and healthier C. weaker and weaker

D. more and more healthily 8

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