______ it have been the failure to pick up directions from the ground control that caused the air crash?
| A．Must | B．Could | C．Would | D．Should |
If you _______ go, at least wait until the storm is over. (2011 .辽宁）
| A．can |
| B．may |
| C．must |
| D．will |
Do you agree _______ him_______the matter discussed at the conference?
| A．with; about |
| B．to; with |
| C．with; to |
| D．to; on |
After he graduated from college, he_______his father,s business.
| A．took in |
| B．took up |
| C．took over |
| D．took on |
--- It’s a good idea But who’s going to _______ the plan?
---I think Tom and Grey will.
| A．set aside |
| B．carry out |
| C．take in |
| D．get through |
It is important that we_______ with all that_______ in the struggle.
| A．should unite; be united |
| B．would like;can be united |
| C．should unite; could unite |
| D．unite; can be united |