1 . It was in the lab ________I worked________they did the experiment.

A．where；which	B．where；that
C．which；which	D．that；which

2 . It is your attitude, rather than your aptitude (天资), ________ determines your altitude.

A．which

B．that

C．what

D．who

3 . It is the test system, rather than the teachers,_______ is to blame for the students' heavy burden nowadays.

A．who

B．this

C．that

D．whom

4 . It is his strong sense of humor, as you know,               makes him popular with teachers and students.

A．which

B．that

C．why

D．how

5 . --Was it at 11 o'clock ________ your father came back last night?
--Yes, he is always coming back so late.

A．while

B．when

C．that

D．until

6 . Was it on that lonely island ________the family finally ___________?

A．where, set down	B．where, calmed down
C．that, settled down	D．which, got down

7 . It’s not doing the things we like, but liking the things we have to do______ makes life happy.

A．that	B．which
C．what	D．who

8 . - Was it because of his laziness_______ he didn't do the experiment successfully?
- No, it was because of his carelessness.

A．that

B．while

C．for

D．as

9 . It was only after he had read the papers ________ Mr. Gross realized the task before him was extremely difficult to complete.

A．when

B．that

C．which

D．what

10 . It was the belief _____ Alex Haley could find his “root” in Afric______ made him decide to go to Gambia.

A．that; which

B．which; which

C．that; where

D．that; that