the history of China, the history of the Untied States is quite short.A．To

题型：不详难度：来源：

the history of China, the history of the Untied States is quite short.

A．To compare with	B．Comparing to
C．Comparing with	D．Compared to

答案

解析

略

举一反三

The Loisels did what they could ___ the debts.

A．to pay off

B．to pay for

C．paid off

D．paid for

题型：不详难度：| 查看答案

___in the air, this kind of steel become harder and harder.

A．Cooling

B．Having cooled

C．Being cooled

D．Cooled

题型：不详难度：| 查看答案

Hearing his words, I couldn"t decide ______ or remain.

A．whether to go abroad	B．if I go abroad
C．if to go abroad	D．to go abroad

题型：不详难度：| 查看答案

___________his homework, the boy went out to play.

A．Doing

B．Done

C．Having done

D．To do

题型：不详难度：| 查看答案

The teacher doesn’t permit ___________in class.

A．smoke

B．to smoke

C．smoking

D．to have a smoke .

题型：不详难度：| 查看答案