Computers and the advantage ____ give us ____ being made better use of presently .
A they ,are
B that ,is
C it was
D whic ,were
You may imagine their ____ at finding the room empty.
为什么答案选astonishment
參考答案:A they ,are
这里是一个定语从句,用来修饰advantage ,因为中心词advantage 在从句中作宾语,所以关系代词可是省略,从句的主语是computers,复数,所以谓语用的give
第二空是主句的谓语,其对应的主句的主语是Computers and the advantage they give us ,所以用复数的are
2.their是形容词性物主代词,后面要加名词,所以要用astonish的名词形式astonishment
