“One one zero” 表示 ____。A. 火警 B. 匪警 C. 急救中心
Could you tell me ______ the bookshop is?
I don’t know ______ he will come tomorrow. ______ he comes , I’ll tell you.
He was afraid ______ make friends with anyone.
If you think you are a ______, you might always be ______.
—Can you tell me ______ Sally will play the piano? —Yes, at nine o’clock. I think.