The scientist has made quite a few discoveries, ______ of great importance to the whole world.
| A．which I think they are | B．which I think are |
| C．I think which are | D．that I think they are |
.
As I grew up in a small town at the foot of a mountain, the visit to the village_____ scenes of my childhood.
| A．came up | B．called up | C．took up | D．made up |
.
You’d better not buy this kind of cloth, it _______.
| A．is torn easy | B．tears easy |
| C．tears easily | D．is torn easily |
.
She is the only one among the ______writers who _____stories for children.
| A．woman, writes | B．women, writes | C．women, write | D．woman, write |
.
________in a white uniform, he looks more like a cook than a doctor
| A．Dressing | B．Dressed | C．Being dressed | D．Having dressed |
.
—She must have gone back to the valley.
—No, she_________. The entrance to it was nowhere to be found.
| A．mustn’t | B．needn’t | C．couldn’t | D．may not |