---It is selfless ______ the doctor to devote all the time he had ________ for the patients.

   ---I think so, they are so great.

A. for; to care     B. of; to care        C. for; to caring    D. of; to caring

China began to open to the outside world in the late 1970s. _________, there have been great changes in the country.                  

A. By then   B. As a result    C.  At last        D. In all 

---I met Daniel in the street yesterday, I ________ him since he left for Beijing.

--- Well, does he look like what he used to be?

A. haven’t seen      B. didn’t see         C. hadn’t seen        D. wouldn’t see

The social worker asked Daniel ______________.

A. if did he have any problem     

B. who he played football with the day before    

C. how long he usually spent on his homework   

D. what he will do this summer

The old man keeps coughing________. I’m afraid you have to send him to hospital.

A. between morning to night             B. from morning to night

C. between morning and night              D. from morning and night

--- When will they finish filming the documentary? --- _________________.

A. Until next month                       B. Not until next week

C. A month later                       D. For a month

---I’m still working on my project.

---Oh, you’ll miss the deadline（截止期限）. Time is________.

A. running out     B. going out         C. giving up         D. losing out

--- Driving on icy roads is very dangerous ! The more ice there is, the _______ down the road you have to look. You should be more careful.

   --- OK, I will.

A. more far             B. farer            C. farther          D. farthest

---She broke her mother’s favourite vase______ she stood up.

  ---It’s a pity!

A. while                 B. as              C. after      D. until

You can visit Zhalong Nature Reserve, one of the few places on Earth _____ red-crowned cranes still live.

A. which             B. that           C. where      D. when