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The global warming is more and more serious, for which human beings ______．
#93649
A
are blaming
B
are to blame
C
are going to blame
D
are to be blamed
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______ unless I call you.
#94749
A
Please come
B
Not come in
C
Don’t come in
D
Come in
– How do you find this film?   - It is the best film      .
#92779
A
that I had seen
B
which I have ever seen
C
which I saw
D
that I have ever seen
-- I didn’t go to Mary’s party last night because my car broke down. ---You could have borrowed mine. I ____ it.
#93178
A
idn’t use
B
adn’t used
C
asn’t using
D
ouldn’t use 
John thinks it won’t be long _____ he is ready for his new job.
#92018
A
when
B
after
C
before
D
since
 --- How many times have you been to China?--- In fact, it is the first time that I ______ here.
#92069
A
was
B
am
C
had been
D
have been