1.-Where should I send my form?
-The Personnel Office is the place ( )
选A.to send it to ,send的宾语it不能省略,
2.It's necessary ( ) some English grammer.
没答案
应该是 for us students to learn
3.No matter how busy he is,he ( ) at least 15 minutes a day.
选B.makes it a rule to read
it 是形式宾语,在复合宾语中常用it代替动词不定式 to read
4.-If Mary dosen't come to work on time ,she may be fired.
-Surely she is not so foolish (as not to realize) it.
对
5.When I went out it happened ( ).
选 A.to rain
happen to do 碰巧干某事