12. A: What is the net around the bed for? B: It ________ to stop bugs from _______ in.(A) is used ;
13. Do you know that the first cola ________ by mistake, and it ________ as cold medicine before?(A)
14.My car is old. It _________ 5 times since last year , but I don’t have money to buy a new one.(A)
15. After _______the doctor, I ___________ the medicine 3 times a day.(A) was seen ; asked to take (
16. Do you know ___________________________? B: He got a bad grade on the math test.(A) why does Pet
17. My sister dropped me a note to ask _______ to buy for Mom as a birthday gift.(A) where (B) how (
18. I feel so nervous. I really don’t know ____________________. Can you help me?(A) what can I do (
19. Do you know when Peter _________ tomorrow? I will show him my new shoes when he ______ tomorrow.
20. Please tell me _______________by my pet spider. I need to say sorry to him/her.(A) who bit (B) w
21. Mary wants to go hiking in the mountain this Saturday. She needs to make sure _______the weather
23. I don’t know ________ Peter will quit smoking or not, but he promised me _____ he will try his b
26. The soup is still too hot ________. Please wait for a few minutes.(A) to eat it (B) to eat (C) f
27. A: Do you know who_____________________? B: She is Mary, a new student in my class.(A) is the gi
28.Tom: Mr. Evans, don’t you miss your home? Will you go back to the UK someday?Mr. Evans: I don’t t
29. Peter: Ms. Liu, I don’t like myself very much because I am short and have acne. What can I do?Sh
30. A: You look worried! What’s on your mind? B:__________________________.(A) Sure. I’ll let you kn