2 . When I tried to understand ______ prevented my progress in English study, it seemed to me that there were two causes.

A．what it was that

B．that it was what

C．it was what

D．what was it that

3 . It was in this ancient big house _______ garden was full of tall pine trees _______ we learned a lot of its history and took a lot of picture.

A．which; that

B．where; which

C．that; where

D．whose; that

4 . It was then ________ I realised mom’s seat was empty!

A．who

B．where

C．that

D．which

6 . It was after months of regular treatment ______ he finally became healthy.

A．what

B．that

C．which

D．when

7 . Top students are not merely those who sit up late to study. It is their concentration and efficiency in learning, which come from themselves rather than other sources, ___________really matter.

A．where

B．that

C．what

D．which

8 . It is our parents ________ we depend on when we are in trouble.

A．whom

B．as

C．whose

D．who

9 . It was in my senior high school ________I met the well-respected teachers ________I made great progress in many aspects.

A．that; that

B．where; when

C．that; when

D．where; that

10 . —I can’t find Mr Smith. Where did you meet him this morning?
—It was in the hotel ________ he stayed ________ I met him.

A．where, that

B．which, that

C．the one, that

D．that,where