The students must hand in their essays in a week, ? No, they .-考呗网题库移动版

单选题 The students must hand in their essays in a week, ? No, they .

A．needn't they.. mustn't
B．mustn't they.. mustn't
C．mustn't they.. needn't
D．shouldn't they.. should

参考答案C

解析:

单选题 She will not leave, nor __________ allow him to continue treating her badly.

A．she will
B．is she
C．will she
D．she is

单选题 The discovery of the halftone process in photography in 1881 made it __________ photographs in books and news-papers.

A．the possible reproduction
B．possible to reproduce
C．the possibility of reproducing
D．possibly reproduced

单选题 The face of the Moon is changed by collisions with meteoroids, ____________________ new craters to appear.

A．cause
B．causing
C．caused
D．have caused