— We haven’t heard from Jane for a long time.— What do you suppose ______ to her?
#100768
A
was happening
B
has happened
C
to happen  
D
having happened
推荐题目
The library needs ________, but it’ll have to wait until Sunday.
#104295
A
cleaning
B
be cleaned
C
clean
D
being cleaned
 Just look at the room. My roommate ____ up his clothes.
#104840
A
is never hanging
B
will never hang
C
never hangs
D
never hanged
It was the second time that we ______ in holding such important parties.
#100119
A
had succeeded
B
succeed
C
succeeded
D
have succeeded