16. John: Do you mind If I close the window? Peter:
A. I hope so.
B. Please do.
C. I'm sorry, I can't
D. That's a good idea.
17. The boy over there is my brother.
A. stand
B. stood
C. standing
D. to stand
18. I was cooking dinner when the telephone
A. was ringing
B. rings
C. will ring
D. rang
19. I am very..... that you passed your English exam
A. happiness
B. happily
C. happy
D. unhappy
20. They tried to make a fire by ....of bamboo together.
A. rubbing pieces
D. adding
B. separating
C. taking
