—Do you know Ann Watterson very well?—Yes, she used to be ______ coach and in ______ charge of our school team.
30.Nothing is wrong with the radio___________? 31.
27.I don't know_____________makes her afraid of having her business discussed.
28.Which sentence is wrong? 29.
33.I don't think_____________difficult for a Chinese student to master a foreign language within five years 34.
35..It's the second time you_________late this week. 36.