_____ it will do us harm or good remains to be seen.
| A．If | B．Whether | C．That | D．What |
The world’s largest Jiaozi was made, _______ an incredible 480 kilograms.
| A．weighing | B．weighed | C．to weigh | D．being weighed |
— We did not see him at the lecture yesterday．
— You _______ him, since I went to an international conference with him．
| A．mustn’t have seen | B．can’t have seen |
| C．couldn’t see | D．needn’t have seen |
But when I got _______ the town ought to have been, all I found was a gas station．
| A．where | B．which | C．what | D．that |
In the survey they listed twelve kinds of food _______would affect the work of the brain．
| A．which the experts believed | B．that were believed |
| C．the experts believed that | D．the experts believed |
The house rent is expensive．I’ve got about half the space I had at home and I’m paying _______ here．
| A．as three times much | B．s much three times |
| C．much as three time | D．three times as much |