There was something wrong with the network, or the e-mail____ earlier.
#86903
A
could have been sent
B
might be sent
C
need have been sent
D
must be sent
推荐题目
If it the climate, I would stay here much longer.
#86441
A
is not for
B
had not been for
C
were not for
D
would not be for
If human beings had been a bit less greedy and cruel, more birds and animals _______dying out.
#89245
A
ought to avoid
B
could have been avoided
C
should have avoided
D
might have avoided
