---Boys, don’t swim in the Fengcheng River!
---Why not? Isn’t it deep enough _____?
| A．to swim across | B．to swim in |
| C．swim on | D．swimming on |
一Are you going to Guilin by plane?
一It’s fast but expensive, so I’m not sure．I ________ take a train．
| A．should | B．may | C．must | D．will |
Don’t get off the bus ________it has stopped．
| A．until | B．if | C．because | D．though |
Who can ________ a better idea to increase sales?
| A．agree with | B．deal with |
| C．come up with | D．catch up with |
This is the ________ time in ________ days that Tommy has come to school late．
| A．second；third | B．two：three |
| C．two；third | D．second；three |
The hotel will ________ breakfast, but we will have to go out for lunch and dinner．
| A．ask | B．order |
| C．provide | D．produce |