Jack ______ be in the library. He is playing football on the playground.A．can’t

题型：不详难度：来源：

Jack ______ be in the library. He is playing football on the playground.

A．can’t

B．can

C．need

D．must not学科

答案

解析

试题分析：句意:Jack不可能在图书馆，他现在正在操场上踢足球。can’t 不可能，表示否定的推测，语气很强；can 应该用在否定句中表示推测；need 需要；must not 禁止，不要。根据句意可知，Jack正在踢足球，所以他不可能在图书馆里。故选A。

举一反三

She ________ a model before she _______ a superstar.

A．have been, became	B．had been, become
C．had been, became	D．has been, become

题型：不详难度：| 查看答案

I found him worth because he devoted all his time he had to people in need.

A．mourning ,help

B．mourning ,helping

C．mourn ,help

D．mourned help excited

题型：不详难度：| 查看答案

Amy prefers at home to out at the weekends.

A．staying ,going

B．stay ,going

C．staying , go

D．stay, go

题型：不详难度：| 查看答案

When we hurried to the theatre, the concert ______ for five minutes.

A．had been on

B．had begun

C．had begun on

D．began

题型：不详难度：| 查看答案

The old man lived alone and _________ the age of 89, he a rainy winter evening.

A．at, passed away in

B．on, past away in

C．at, passed away on

D．on, past away on

题型：不详难度：| 查看答案