It is strongly recommended that the machine_____________ every year.
#86995
A
are checked
B
should check
C
checked
D
be checked
推荐题目
（2014年北京市西城区高三5月二模试题）30. — The professor gave a really good speech. — I suggest you _____ him some specific questions about his work experience.
#86399
A
have asked
B
will ask
C
asked
D
ask
More and more people have come to realize that if we had taken effective measures much earlier, the air quality ______ so seriously now.
#86958
A
is not polluted
B
would not be polluted
C
had not been polluted
D
would not have been polluted
Listen! There’s a lot of noise from next door. They _____________ a party.
#88195
A
could have had
B
must be having
C
should have had
D
can be having
— Catherine, I have cleaned the room for you. — Thanks. You ______ it. I could manage it myself.
#90498
A
needn’t do
B
needn’t have done
C
mustn’t do
D
shouldn’t have done