However much you have done, you ought to     the help you’ve received from others.
#72503
A
donate
B
acknowledge
C
conduct
D
guarantee
推荐题目
 In order to finish the project , we need ___________ money .
#63973
A
the large number of
B
a large sum of
C
a great many
D
a number of
The teacher said that light ___ faster than sound.
#80957
A
travelled
B
had travelled
C
travels
D
were travelling