People have planted a great many trees in order to ____wind and sand in the desert.
| A．hold down | B．hold up | C．hold back | D．hold out |
. I need to call my friend David ___________ coat I walked off by mistake yesterday.
| A．in that | B．in whose | C．with which | D．with her |
. Many new workers_______ and in six month they will be sent to build a new railway.
| A．are being trained | B．are training | C．will train | D．will be trained |
---Could I borrow your car for a while?
--- _________. I won’t use it today.
| A．Never mind | B．Of course you could |
| C．You are welcome | D．By all means |
—— I’d like to take a month’s holiday.
——___________ . We are too busy.
| A．Don’t worry | B．Forget it | C．Don’t memtion it | D．Pardon me |
The flag looks especially beautiful _______________ the blue sky.
| A．against | B．on | C．towards | D．beyond |