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 |
David apologized for _______ to inform me of the change in the plan.
| A．his being not able | B．him not to be able |
| C．his not being able | D．him to be not able |
Can $ 500 _________ the cost of the whole trip?
| A．contain | B．cover | C．include | D．afford |
What he said is not to the point _____ we should focus on constructing a harmonious society.
| A．that | B．which | C．where | D．if |
My cousin went to Canada two years ago. He ____ there for a few months and then went to America.
| A．worked | B．would work | C．would be working | D．has been working |
My laptop computer, _______ I can’t go on with my work, broke down the other day.
| A．for which | B．which | C．without it | D．without which |