(2013·湖南长沙四校二模)—Is the letter from your mother?—Yes.But she ________the letter herself，because she doesn’t even know one word.
#62192
A
needn’t have written
B
can’t have written
C
might not have written
D
should not have written
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Today’s work ____ today. Never leave it till tomorrow.
#78180
A
must do
B
must be done.
C
may be done
D
may do
---- Daddy ,can you buy me a new MP3 when you go to Beijing?-----You ____ get one if you are admitted to a key middle school.
#63097
A
could
B
shall
C
may
D
can
Mary _______ her mother with the housework, but she didn’t.
#63072
A
must have helped
B
ought to have helped
C
must help
D
should help
I ________ myself more— it was a perfect day.
#62719
A
shouldn’t have enjoyed
B
needn’t have enjoyed
C
wouldn’t have enjoyed
D
couldn’t have enjoyed