1 . After a while, he realized that he was in a situation _________ he was _________.

A．where; made use	B．that; made use of
C．in which; made use of	D．which; made use

2 . Sped skating is a competitive form of ice skating________ the competitors race each other in travelling a certain distance on skates.

A．in which

B．from which

C．on which

D．at which

3 . Most women identified at least one trusted friends __________ they could turn in a trouble moment.

A．off which

B．on which

C．to whom

D．up whom

4 . If they continue abusing drugs, in the end drug users will find themselves trapped in a prison ________ they cannot escape.

A．to which

B．from which

C．by which

D．in which

5 . The artist ________the judge gave a prize is the teacher________ I have been taught for three years.

A．to whom; who	B．from who; who
C．to whom; by whom	D．from whom; by whom

6 . Small tour groups from countries________ coronavirus infections are well under control are welcome here

A．in which

B．when

C．that

D．from which

7 . Israel has not announced the extent ________it is willing to withdraw from the Golan Heights.

A．that

B．in which

C．where

D．to which

8 . The use of genetic engineering should be restricted to just those cases _____ the health of the mother or her baby is threatened.

A．in which ​​​

B．how

C．of whom

D．why

9 . --- Sorry! I can’t remember the age ________ Alice won the prize.
---- 12-year-old, I guess.

A．in which

B．at which

C．what

D．that

10 . The way ________ you used to make fire ________ right.

A．/, proved

B．that, was proved

C．in which, proved

D．what, has been proved