You’ve switched the machine off. I told you not to,_____?
24. My mother _____ all the cleaning for my family, but recently she has been too busy teaching to do it.
The famous reporter, who is said to have gone back to America last year, _____in China for almost twenty years.
22. Tom, you play the violin so well. But I ______ you can play the violin.
(年山东日照市高三校际联合检测)4.—How long have you been here,Susan?—Only about half an hour.Beth________here with me.
【考点】考察时态