---Have you heard of Earth Day?
--- Yes, We have only one Earth. We have no choice but ________ it.
| A．protect | B．protected | C．protecting | D．to protect |
---Hi, Kate. You look tired. What’s the matter? --- I _______well last night.
| A．wasn’t | B．don’t sleep | C．haven’t slept | D．didn’t sleep |
--- _______did it _______ the conductor to check the tickets this morning?
--- Half an hour.
| A．How soon; take | B．How long; cost |
| C．How often; spent | D．How long; take |
--- Excuse me, where is the nearest hospital?
--- Go _______the road, then turn left _______the first turning.
| A．down; in | B．across; on | C．along; at | D．along; across |
---What are the police doing there?
---They are _______ the building. A robber ran into it just now.
| A．finding | B．searching for | C．searching | D．looking for |
_______ enjoyable music programme on Channel 3!
| A．How | B．How an | C．What | D．What an |