-This problem is very difficult. -I know,but Jack has working it out.
#38799
A
succeed in
B
succeeds in
C
succeeding in
D
succeeded in
推荐题目
The volunteers __ a lot of help to the community for nearly ten years.
#41617
A
offered
B
will offer
C
are offering
D
have offered
There ______ a dolphin show in the zoo tomorrow evening.
#37869
A
was
B
is going to have
C
will have
D
is going to be
His fahter _____in New York last Friday. But he _____here now.
#41583
A
is , was
B
was, is
C
were, is
D
were, was