——Did you find the missing couple in the mountain yesterday?——No, but we _____ to get in touch with them ever since.
#101360
A
have tried
B
have been trying
C
had tried
D
had been trying
推荐题目
I need to go back home before I _________ money.
#102744
A
is running out
B
run out
C
have run out of
D
is running out of
Before you leave the lab, the doors and windows ____shut in case of rain.
#103452
A
is
B
are
C
is to be
D
are to be
---Where___?—I got caught in the heavy traffic, or I ___ here earlier.
#102463
A
did you go; had arrived
B
are you; was
C
were you; would come
D
have you been ; would have been
If you ________ Beijing Duck，I'd like to treat you to a meal at a famous duck restaurant．
#104939
A
didn't try
B
don't try
C
haven't tried
D
hadn't tried
I had a discussion with Mr. Baker and hoped he _________ us an early reply.
#99796
A
would give
B
give
C
gave
D
had given