跟别人初次见面，应该说：A. How are you?B. Nice to meet you.C. How do you do?
选出正确的答句。
I knowwe shouldn’t eat bananas here. A. why B. what C. where
Look, the manin the bookshop. A. is smoking B. smokes C.smoked
I can see a sign the tree. A. in B. on C. at
You ______ litter in the school. Let’s keep it clean. A. should B. shouldn’t C. can
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