After the party, the boy apologized to the girl for the trick he had_______on her.
| A．taken | B．played | C．undertaken | D．conducted |
The bus hit the huge stone by the road heavily _________ he could stop it.
A. after B. before C since D. until
____________ to do the repair, and what you need is only a hammer and some nails.
| A．It is hard | B．That is easy | C．That is hard | D．It is easy |
They’re not playing baseball today ___________ the rain.
| A．because | B．as | C．since | D．because of |
I have no idea ________ is better, so I took _______ of them.
| A．what, both | B．what, none | C．which, both | D．which, all |
The country has ________ too many wars.
| A．gone down | B．gone through | C．gone along | D．gone up |