12.　 Could you please teach me _______ the computer.

A. how check　　　　 B. to check　　　　 C. how to check　　　 D. to how checking

11.　 No one tells us______, so we need your help.

A. how we should do　　　　　　　　　　　　 B. what should we do

C. how to do it　　　　　　　　　　　　　　　 D. what to do it

10.　 He asked his father _______.

A. where it happens　　　　　　　　 B. where did it happen

C. how it happened　　　　　　　　 D. how did it happen

9.　　　 I can’t understand _______ the boy alone.

A. why she let　　　 B. why did she leave　　 C. why had she left　　 D. why she had left

8.　　　 Can you tell me ___________?

A. where are you doing　　　　　　　　 B. where do you study

C. where you were doing　　　　　　　 D. where yu study

7.　　　 The manager came up to see __________.

A. what was the matter　　　　　　　　 B. what the matter was

C. what the matter is　　　 　　　　　　D. what’s the matter

6.　　　 They tried to find out ______ the new train ________.

A. how far/ had gone　　　　　　　　 B. how long/ has gone

C. how far/ went　　　　　　　　　　 D. how far had/ run

5.　　　 She told me the sun ______ in the east.

A. rise　　　　 B. rose　　　　 C. rises　　　　　 D. had risen

4.　　　 I can’t understand ______the boy alone.

A. why she left　　 B. why did she leave　　 C. why she had left　　 D. why had she left

3.　　　 　Do you still remember _______?

A. that he said　　　 B. what he said　　　 C. did he say that　　　 D. what did he say