--- What should I do, doctor? ---         healthy,  you should take more exercise.
#50593
A
Keep
B
To keep
C
Keeping
D
To keep out
推荐题目
The policeman told us                the street when the traffic light was red.
#48686
A
not cross
B
didn’t cross
C
not to cross
D
not crossing
---What about going hiking this afternoon, Simon? --- I prefer ______ to _________ , it is too hot.
#48961
A
going hiking, stay at home
B
to stay at home, hike
C
to hike, stay at home
D
staying at home, going hiking
Don’t look at me        that.
#49594
A
likes
B
like
C
liking
D
look like
________ hard is the key to success. 
#51086
A
To work
B
Work
C
Worked
D
Works