Question

It was announced that only when the fire was under control_______to return to their homes.

A．the residents would be permitted	B．had the residents been permitted
C．would the residents be permitted	D．the residents had been permitted

Answer 1

C

試題分析：句意:這里公告只有火勢(shì)被控制住了居民才可以重返家園。這里it是形式主語，that引導(dǎo)的是主語從句，在這個(gè)主語從句中，把only放在句首，后面的主句用部分倒裝，故排除AD，根據(jù)句意居民將要返回家園，所以應(yīng)該用過去將來時(shí)，故選C。
點(diǎn)評(píng)：本題難度適中。倒裝及動(dòng)詞的時(shí)態(tài)是高中階段的重要的兩項(xiàng)語法項(xiàng)目，它們的各種情況比較多，需要考生牢記它們的用法，但是把兩者結(jié)合一起來考查更增加了試題的難度。
即學(xué)即練:According to the law, it is ______get your license.
A. not until you’re eighteen can you
B. until you’re eighteen that you can’t
C. not until you?re eighteen that you can
D. until you’re eighteen when you can’t
解析：C。含有not ...until的句子的強(qiáng)調(diào)句用It is/was+not until ...+that ...句型。