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
In the past ten years, the ________mountain climber _________ a lot from his own adventurous _______
#14183
A
experienced; experienced; experience
B
experience; experienced; experiences
C
experienced; has experienced; experiences
D
experience; has experience; experience