______ 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 |
My wife ______the night shift when my plane ______. That’s why no one is to meet me at the airport today.
| A．will be working; arrives | B．was working; arrived |
| C．will have worked; has arrived | D．is working; is arriving |
As I know, there is _____ car in this neighborhood.
| A．no such | B．no a | C．not such | D．no such a |
Economic growth in the world remains weak throughout 2012 and it is hoped that it will _____ gradually in 2013.
| A．break up | B．make out | C．work out | D．pick up |
—You didn’t go to Europe, why?
—I _____ this morning, but I _____ to Shanghai because of an emergency ．
| A．was to start; am going | B．was scheduled to start; will go |
| C．should have started; am going | D．would like to start; will go |
--- You often talk with your classmate on the telephone or mobile phone?
--- _____． I like using QQ．
| A．None | B．Either | C．Any | D．Neither |