. I have to see the doctor because I_________a lot lately.

题型：不详难度：来源：

A．have been coughing	B．had coughed
C．coughed	D．cough

答案

解析

略

举一反三

It is reported that many a new house_________at present in the disater area.

A．are being built

B．were being built

C．was being built

D．is being built

题型：不详难度：| 查看答案

The flowers ______ my mother, but my sister thought they were for her and took them.

A．were intended for	B．intended for
C．intended to give	D．intended giving

题型：不详难度：| 查看答案

If you try to learn too many things at a time at the beginning, you may _______.

A．have confused	B．have to be confused
C．get confused	D．get confusing

题型：不详难度：| 查看答案

Such poets as Shakespeare____widely read，of whose works，however，some______difficult to understand．

A．are；are

B．is；is

C．are；is

D．is：are

题型：不详难度：| 查看答案

一When shall we restart our business?
一Not until we____________our plan．

A．will finish

B．are finishing

C．are to finish

D．have finished

题型：不详难度：| 查看答案