I can’t thank you too much for your kindness because without your help I        have won the first prize in the speech contest.
#4559
A
can’t
B
shouldn’t
C
might not
D
couldn’t
推荐题目
.If _____,the experiment will be successful.
#4718
A
carefully doing
B
it done carefully
C
carefully done
D
doing carefully
The exciting news he had been looking forward ___ at last, so he did nothing but____.
#5031
A
to came; cry
B
to coming; cry
C
to come; to cry
D
of come; to cry
.The horses________each other________the first prize in the match. 
#4781
A
competed against; for
B
competed against; to
C
completed against; for
D
completed; to get