______ is necessary _______ us ________learn English well.
#62097
A
It, of, to
B
This, of, of
C
It, for, to
D
This, for, to
推荐题目
Where ________ you ________?
#62475
A
do; from
B
is; from
C
do; come from
D
are; come from
——The birdwatching is very boring, isn’t it?——_____________ . I only see few birds.
#62084
A
Yes, it isn’t
B
Yes, it is.
C
No, it is.
D
No, it isn’t.
—You can’t smoke here . Look at the sign.         —Sorry, I __________ it.
#62420
A
am going to see
B
won’t see
C
don’t see
D
didn’t see
—What’s  ________ with him?      —He has a cold.
#62595
A
question
B
the matter
C
matter
D
problem