The continuous rain _________ the harvesting of the wheat crop by two months．

set back

set off

set aside

set out

Some researchers are finding that daydreaming may be important to ________ mental health．Daydreaming, they say, is _______ good means of relaxation．

the;不填

不填; the

不填；不填

不填; a

The experiment shows that proper amounts of exercise, if; _________ regularly, can improve our health．

being carried out

carrying out

carried out

to carry out

“________ the election is over," said Powell, "the time has come for me to step down as secretary of state and return to private life．"

Now that

Incase

So long as

As far as

I _________ in a foreign company for five years．Still, I don't regret giving up the well-paid job．

worked

have worked

was working

had worked

The beautiful mountain village _________ we spent our holiday last year is located in _________ is now part of Guangxi．

which; where

where; what

that; what

where; which

After watching the movie Inception, I bought some DVD copies of the film, but now _________ is left．

no one

nothing

none

neither

It is not I but Tom and his wife that _________ for the car accident．

am to blame

are to blame

am to be blamed

are to be blamed

Out of the crowded bus _________, who was dressed in a black suit and waved to a woman．

a tall man in his thirties stepped

stepped a tall man in his thirties

did a tall man in his thirties step

did a tall man step in his thirties

Please do me a favor－_________ my friend Mr．Smith to Youth Theater at 7∶30 tonight．

to invite

inviting

invite

invited