—Did you find the missing couple in the mountain yesterday?—No, but we ________ to get in touch with them ever since. 
#104758
A
have tried
B
have been trying
C
had tried
D
had been trying
推荐题目
-Car 17 won the race.- Yes ,but its driver came close to ________.
#103767
A
having been killed
B
have been killed
C
be killed
D
being killed
——Is this the first time you _______ Qingdao?—— No, but the first time I _______ here, the city wasn’t so beautiful.
#102306
A
visited; came
B
visited; have come
C
have visited; have come
D
have visited, came
Mark Twain _____ along the Mississippi River, which was _____ to his writing.
#99593
A
was grown up / benefit
B
brought up / benefit
C
grew up / of beneficial
D
was brought up / beneficial