27. The boy was busy doing his homework, only_____once in a while to look out of

题型：不详难度：来源：

27. The boy was busy doing his homework, only_____once in a while to look out of the window.

A．stopping

B．to stop

C．stopped

D．having stopped

答案

解析

略

举一反三

31._____for a strong and fair climate agreement at the key UN summit in Copenhagen, 50,000 people in London wore blue and went to the streets.

A．Call

B．Calling

C．To call

D．Called

题型：不详难度：| 查看答案

Children under 10 are not permitted _____ the film.

A．to see

B．seeing

C．saw

D．watched

题型：不详难度：| 查看答案

The thief had himself _____ by the police when he was trying to break into the hotel.

A．to spot

B．to be spotted

C．spotted

D．being spotted

题型：不详难度：| 查看答案

It is reported that some wild animals were found ____ in a big cave in the mountain.

A．to hide dead

B．hidden dead

C．hiding dead

D．hidden death

题型：不详难度：| 查看答案

Exciting as its special effects are ___ , there is too much violence in the film.

A．to watch

B．to be watched

C．watching

D．being watched

题型：不详难度：| 查看答案