We've just installed two air-conditioners in our apartment,should ma-考呗网题库移动版

单选题 We've just installed two air-conditioners in our apartment,should make great differences in our life next summer. ______

A．which
B．what
C．that
D．they

参考答案A

解析:【答案】A。解析：这是一个非限制性定语从句，此处缺少一个关系代词；由于该非限制性定语从句先行词是air-conditioners，所以关系代词应用which。故选A。

单选题 The new colleague______to have worked in several big corporations before he joined our company.

A．confesses
B．declares
C．claims
D．confirms

单选题During the reading lesson, the teacher asked students to read a fewfrom the novel. ______

A．pieces
B．Essays
C．fragments
D．extracts

单选题I've tried very hard to improve my English. But by no means______with my progress.

A．the teacher is not satisfied
B．is the teacher not satisfied
C．the teacher is satisfied
D．is the teacher satisfied