_________ hard and you’ll make progress in English.
#52764
A
Work
B
Working
C
To work
D
Worked
推荐题目
It’s cold outside. You’d better          your coat.
#58661
A
put on
B
take off
C
put away
D
put up
The doctor looked ______ the old man ______.
#61427
A
at…care
B
over…careful 
C
up…carefully
D
over…carefully