—Look at the sign! —Oh, I see.We _______ waste water.
#77631
A
can
B
must
C
mustn’t
D
needn’t
推荐题目
—Where did you get this book?—I picked it up from a secondhand bookshop if you ________ know.
#62316
A
must
B
will
C
can
D
shall
Sometimes smiles ______ be false, hiding other feelings like anger, fear or worry.
#75492
A
must
B
can
C
should
D
would
I told Sally how to get here, but perhaps I ______for her.
#62233
A
had to write it out
B
must have written it out
C
should have written it out
D
ought to write it out
You ______ to the party if you’re so busy.
#76821
A
don’t need come
B
not need coming
C
needn’t come
D
need not to come
--Jack, is this your jacket?--No, it _______ be my jacket. My jacket is black but this one is blue.
#74588
A
mustn’t
B
needn’t
C
can’t
D
may not