Start studying early and don’t study too much  .
#80937
A
at one time
B
at a time
C
at times
D
from time to time
推荐题目
In my opinion, your work does not _____ what I expected of you.
#81732
A
catch up with
B
add up to
C
come up to
D
go in for
We _______him on his birthday and held a party to _______it. 
#70595
A
congratulated; congratulate
B
celebrated; celebrate
C
celebrated; congratulate
D
congratulated; celebrate