题目内容
.It is the third time that our water supply _______during the day.
| A．was cut out | B．has been cut off | C．has been call off | D．was cut down |
B
解析试题分析：句意：这是这一天第三次我们的水被切断。It is the third time that从句中用现在完成时，排除AD，cut off“切断”，call off “取消”，选B。
考点：考查固定句型和词组
Our car broke down suddenly and the heavy rain________ our helplessness.
| A．added to | B．led to | C．turned out | D．made up |
After 15 years in the USA, he finally decided to ________ American citizenship.
| A．concentrate on | B．apply for |
| C．put off | D．lead to |
Boys in early adolescence are not _________ to the cinema because the film is not suitable for them.
| A．permitted | B．accepted | C．admitted | D．forbidden |
His aunt’s letters ________ memories of those beautiful days when they used to live together in his hometown.
| A．call at | B．call for | C．call on | D．call up |
China has been considering raising the retirement age since 2008 to ________ its shrinking workforce and aging society.
| A．set off | B．put off | C．bring about | D．cope with |
Though he was _______,he looked down upon those who had a lot of money.
| A．well off | B．rich | C．badly off | D．well-known |
Mr. Li, who _____ his whole life to education, is retiring next month.
| A．devoted | B．is devoting | C．has devoted | D．had devoted |
He has a good command ________ maths and plays an important part ________ our team.
| A．about; in | B．of; to | C．to; about | D．of; in |