The windows haven’t cleaned for a long time. They need ______.A．to cleanB．to be

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The windows haven’t cleaned for a long time. They need ______.

A．to clean

B．to be cleaned

C．cleaning

D．B and C

答案

解析

略

举一反三

I am interested in traveling. It is ______ but ______.

A．interesting; tiring	B．interested; tired
C．interesting; tired	D．interested; tiring

题型：不详难度：| 查看答案

. The 2010 Shanghai World Expo is well worth ______.

A．visit

B．visited

C．to visit

D．visiting

题型：不详难度：| 查看答案

. Don’t have the lights ______ all day long. It is a waste of electricity.

A．burn

B．burned

C．burning

D．to burn

题型：不详难度：| 查看答案

When I get older, I will be stronger. They’ll call me ______. Just like a _____ flag

A．free; wave

B．freedom; to wave

C．free; waved

D．freedom; waving

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The H1N1 flu, often _____ “swine flu” by the public media, is a disease which can be prevented, controlled and cured.

A．calls

B．to call

C．calling

D．called

题型：不详难度：| 查看答案