When they retire, many people over 60 prefer the houses in the country to spend their remaining years to __________ in a large city.
A. it B. that C. those D.which
We have a high regard for Mr. Smith because he always tries to _____________his principles.
A. look forward to B. live up to C. keep up with D. put up with
When he came back, he found the bag he had ______________ over the seat was gone.
A. left hanging B. left to hang C. left hung D. to leave hanging
We should be able to do the job for you quickly, ____________ you give us all the necessary information.
A. in case B. so long as C. if only D. so far as
Jack could have avoided that terrible car accident, but he ________ careful enough.
A. is not B. hasn’t been C. was not D. hadn’t been
The climate change conference has come to __________ end, but the developing countries are dissatisfied with __________ small step that the developed countries have taken to reduce the emission(排放) of water gases.
A. 不填， a B. 不填， the C. an , a D. an, the
