I’ve listened to Professor Smith’s talk about medicine,but I still haven’t got a good understanding of its key _________.
| A．notes | B．information | C．words | D．points |
regular exercise is very important.It’s never a good idea to exercise too close to bedmme.
| A．It | B．As | C．Although | D．Unless |
On the next birthday.Annmarried for twenty years.
| A．is | B．has been | C．will be | D．will have been |
In the last few years thousands of filmsall over the word.
| A． | have produced | B． | have been produced |
| C． | are producing | D． | are being produced |
----Just a moment . I haven’t finished packing my suitcase.
---- .Its high time we left for the airport.
| A．Go ahead | B．Take it easy | C．Hurry up | D．That’s fine |
We feel our duty to make our country a better place.
| A．it | B．this | C．that | D．one |