1) All----is heeded is plenty of books
A the thing B which C what D that
2) watch the boy and the dog-----are crcssing the bridgd
A who B which C that D whom
3) It has been quite a while-----------
A until I write you B before I have written
C while I wrote you D since I wrote you last time
4)He is the best man-------I have ever seen.
A whom B who C what D which
5)The days-----you could travel without a passport are a thing of the past.
A whenever B wherever C on which D in which
6)Do you know the student----------?
A whom I often talk B with who I often talk
C I often talk with D that I often talk
7)He failed his exam,----------proves that he wasn't working hard enough.
A what B of which C which D this
1. d All that is heeded 是主语部分。
2. a the boy and the dog是人和物，故用who最好
3. d. 由前半句语义知与 已经过去了相当长时间 相搭配的应该是 自从。。。
4. a.the best man 是see的宾语，故用whom.
5. d. 句子意思是 你无护照旅游的日子一去不复返 了，是 在这些日子里旅游 。
6. 相比于其他选项， with who I often talk 最好。但是，用 with whom I often talk 更好
7. C. which引导非限制性定语从句。