第1题
A.for
B.against
C.through
D.to
第2题
Killer smog will also happen in the suburbs if ______ .
A.there are too many cars
B.it is too densely populated
C.it is always cloudy
D.too many factories are built
第3题
Many foreign countries also give preferential () to economically-backward areas.许多其他国家也给经济落后地区优惠待遇。
A、treat
B、treatment
C、mistreat
D、treated
第4题
many extracurricular activities.
A.attending
B.attends
C.attend
第5题
第7题
A.Obviously, besides the convenience it offers, e-commerce also has many other advantages.
B.Obviously, it offers the convenience, e-commerce has many other advantages.
C.Obviously, e-commerce is cheap and also has many other advantages.
D.Obviously, e-commerce is cheap except many other advantages.
第8题
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