–Hi, Kate! --Hi, Mary. I ______ you are here. A. don’t know B. don’t think C, think D. didn’t know
30.The British are not so familiar with different cultures and other ways of doing things, ___________ is often the case in other countries
29.-----I _____to go for a walk. -----But I_____ going shopping.
28.—Thank you very much. —Not at all , I was____________ glad to help.
27.I would have come to see you earlier, but I __________ too busy.
26.With summer coming on, the weather gets hot _________.