separate
give up
reject
change
第1题:
A. which
B. that
C. this
D. that
第2题:
Recent studies have shown that air inside many homes, office buildings, and schools is full of pollutants such as ().
A、chemicals
B、smoke
C、bacteria
D、perfume
第3题:
A、risen
B、arisen
C、raised
D、arrived
第4题:
A、have been
B、has been
C、have had
D、are
第5题:
第6题:
A.have
B.has
C.could have
D.can have
第7题:
Hurry up. We don't have____time.
A. many
B. enough
C. too many
第8题:
A. hang on there
B. hung in there
C. hang in there
D. hung in here
第9题:
A、I'm afraid not. Because I have an appointment with my dentist tonight
B、Of course not. I have no idea do
C、No, I can't
D、That's all set
第10题:
It’s hard to give up __________(smoke), but you have to.