a short tree.A.This B. That C. That’s
当你问别人“你正在干什么?”,应该说:_____________。A. What is he doing? B. What are you doing?
当对方问你:“what do you do?”你应该回答:_________。A. I’m working. B. I’m a worker.
当对方在电话时Hello, 你应该这样回答:_____________。A. Hello, I’m Nina. B. Hello, this is Nina.
Can pandas swim? Yes, they __________________.A. can’t B. could C. can
Is he watching ants? No, he__________________.A. is B. isn’t C. doesn’t