—Is the letter from your mother?—Yes. But she ________ the letter herself, because she doesn't even know one word.
#86535
A
needn't have written
B
can't have written
C
might not have written
D
should not have written
推荐题目
—What do you think we can do for our aged parents？—You do anything except that you visit them as often as possible.
#89841
A
don’t have to
B
oughtn’t to
C
mustn’t
D
shouldn’t
—Any information about your son?—No. If only I ______ those tough words to him.
#90532
A
didn't say
B
hadn't said
C
shouldn't have said
D
couldn't have said
Great efforts to increase grain production if food shortages are to be avoided.
#88013
A
could be made
B
must be made
C
might be made
D
would be made
—Can I pay the bill by check? —Sorry, sir. But it is the management rule of our hotel that payment ____ be made in cash.
#89200
A
shall
B
need
C
will
D
can