一、单项选择
1. We are planning _______ one-day trip. ________ trip must be fun, I think.
A. a, The B. an, The C. the, A D. the, The
2. ---Tom, What ________ you in class? ---I fell asleep.
A. is happening on B. happened on C. happened to D.is happening to
3. ---Mum, I am hungry.
---Really? You had lunch 5minutes ago. You _______ hungr y so soon.
A. mustn’t be B. can’t be C. may not be D. won ’t be
4. The two trains go_______ the tunnel（隧道） ________ the same time.
