A Nepal plane crashed in bad weather, ________ all 18 on board.
| A．killing | B．killed | C．having killed | D．to kill |
The time has come ______ we can make extensive use of nuclear energy．
| A．when | B．which | C．since | D．while |
Your performance in the driving test didn't reach the required standard—____, you failed．
| A．in the end | B．after all |
| C．at the same time | D．in other words |
—What will you do next Sunday?
—Maybe do some shopping, for I ______go to school on Sunday．
| A．mustn’t | B．shouldn’t | C．don’t have to | D．had better not |
Asia is important to America because America’s future _____ trade with Asia’s growing economies．
| A．depends on | B．takes off | C．sets up | D．breaks out |
--- Peter, you the window quickly, will you?
--- OK! Oh! The window broken.
| A．shut; is | B．will shut; has been |
| C．are shutting; was | D．have shut; has been |