I ______ the help of my colleagues in the preparation of this new column. 
#12489
A
express
B
confess
C
verify
D
acknowledge
推荐题目
The careless driver is _______ for the traffic accident_______ yesterday.
#13481
A
to blame; happened
B
to blame; happening
C
to be blamed; happened
D
to be blamed; happening
If a student ____ in the exam, he won’t escape punishment.
#13256
A
gets caught to cheat  
B
gets caught cheating
C
gets to catch cheating 
D
gets catching cheated
After 1953 _______ people have succeeded in climbing the mountain.
#14312
A
several hundred of
B
several hundreds
C
several hundreds of
D
several hundred