He ___ away before we arrived, since the house was deserted．
#87613
A
shall have gone
B
should have gone
C
could have gone
D
must have gone
推荐题目
The biggest problem for most plants,which_______just get up and run away when threatened,is that animals like to eat them.
#89083
A
shan’t
B
can’t
C
needn’t
D
mustn’t
We _______ finish it ahead of time, though it was such a tough task.
#88120
A
could
B
would
C
were able to
D
ought to
—What’s his monthly income?—Well, he ________ earn as ________ as 4,000 dollars a month when his business runs well.
#88122
A
can; much
B
might; many
C
must; far
D
should; high
The mother insisted her child ________________________.
#87244
A
to be checked
B
on having a check
C
be checked
D
should check