Generally speaking，prices of daily goods through the Internet are lower tha

题型：不详难度：来源：

Generally speaking，prices of daily goods through the Internet are lower than store prices.

A．bought

B． are bought

C．buying

D．to buy

答案

解析

略

举一反三

Last month, our English Department invited a local radio star to a public lecture on
the topic of media influence on society.

A．communicate

B．demand

C．deliver

D．converse

题型：不详难度：| 查看答案

To finish the homework, he spent four hours _______ in the study.

A．locking

B．locked

C．locked himself

D．to lock

题型：不详难度：| 查看答案

After her son died in a car accident, the old lady would sit at the window, ______ out and _______ in thought.

A．looked; lost	B．looking; losing
C．looked; losing	D．looking; lost

题型：不详难度：| 查看答案

Charles is believed_______ the floor yesterday; he is always helping others silently.

A．to sweep

B．to have swept

C．having swept

D．swept

题型：不详难度：| 查看答案

Don’t enter the office unless _______.

A．you have told to

B．told to

C．telling

D．you are told

题型：不详难度：| 查看答案