There have been no buses _______ half an hour.

A. after B. for C. in D. Since

His grandfather __________ for thirty years.

A. died B. was dead C. has been dead D. has died

--Where’s Sam? ---He _________ for France. He will stay there for a week.

A. had left B. has left C. left D. will leave

Tom_______ for five years.

A. married B. got married

C. was married D. has been married

--You've never been to China, _______? --_______. I've been there three times.

A. have you; No, I haven't

B. haven't you; No, I haven't

C. have you; Yes, I have

D. haven't you; Yes, I have

There may be _________ in Mount Huang, but the weather is very nice.

A. some rains B. some rain

C. some rainy D. a lot of rains

-_______ did your uncle leave his hometown? – He _______ for nearly twenty years.

A. When; has left B. When; has been away

C. How long; has left D. How long; has been away

Jim has many hobbies, ______ swimming, hiking, sailing.

A. for example B. such as

C. such for D. as the example of

There ______ great changes in our hometown in the past fifteen years.

A. has been B. have been C. was D. were

完形填空

Is the river water clean now? Have you______drunk water directly from a river? I'm sure your answer is“No"．Perhaps you may have tried the water from a well(井)or from a tap．______ ，as I know，most of you only drink water from a water boiler ______ the bottled water bought from a shop nowadays．

But things were quite ______ many years ago．At that time，all the small rivers around us were very clear and the water was very clean．If you were______，you could just take some water from the river with your hands and drink it directly．It was cool and sweet．In ______ ，when it was hot，you could swim in the rivers．How pleasant it was!

But all these are in the past．Things ______a lot over these years．There is more and more waste in the world．The rivers are full of ______ kinds of waste．Most of the river water has become very dirty ______ the pollution．Some of the river water is not even clean enough for us to wash our hands．

What a ______ ! I wonder when I can taste the clear river water again．

1.A．already B．just C．ever D．never

2.A．However B．Though C．Since D．Yet

3.A．and B．or C．but D．so

4.A．same B．easy C．difficult D．different

5.A．thirsty B．hungry C．tired D．sleepy

6.A．spring B．summer C．autumn D．Winter

7.A．turned B．have turned C．changes D．have changed

8.A．either B．both C．all D．same

9.A．because B．because of C．instead D．instead of

10.A．matter B．fact C．1uck D．Pity