As nobody here knows what is wrong with the machine, we send for an engineer to handle the problem．
#63675
A
should
B
must
C
can
D
would
推荐题目
With the help of the new technology, you __ e-mail your friends by mobile phone.
#76522
A
can
B
must
C
need
D
should
We can hardly believe that an intelligent person like Daniel ________ be asking such a silly question.
#62552
A
should
B
might
C
must
D
could
– Must I get up early tomorrow morning? – No, _________.
#77530
A
you mustn’t
B
I don’t think you have to
C
you can’t
D
you need
It is usually warm in my hometown in March, but it _____ be rather cold sometimes.
#63464
A
would
B
can
C
should
D
must
—___________ he have to wear his school uniform every day?—No, he ______________.
#75548
A
Must; mustn't
B
Can; can't
C
Does; doesn't have to
D
Do; don't have