There are billions of stars in ______ space.
A.the
B.a
C.an
D.no article

______ used razor blade is______ useless thing.
A.no article
B.A/ a
C.The/ the
D.An/ an

Mrs. Lan went to ______ school to meet her son's teacher.
A.the
B.an
C.a
D.no article

There’s no need to take two _______________ for a day’s climbing.
A.pair of boot
B.pairs of boots
C.pair of boots
D.pairs of boot

She turned down the radio so that she wouldn’t disturb the neighbors.
A.She turned down the radio in order that she wouldn’t disturb the neighbors.
B.She turned down the radio in order not to disturb the neighbors.
C.She turned down the radio so as not to disturb the neighbors.
D.All are correct.

________ the internet is very popular, many older people do not know how to use it.
A.Even though
B.Nevertheless
C.However
D.Despite

Bob has been working very hard these days. ________, he can’t afford to buy a new car.
A.While
B.Nevertheless
C.Though
D.Even though

Josh is one of the best student of the school.______, he can’t pass the national chemistry exam.
A.In spite of the fact that
B.However
C.Despite of the fact that
D.Although

In general, I find it quite difficult to concentrate on questions during the first _____________ minutes of an exam.
A.many
B.any
C.few
D.some

The damage caused by earthquakes and volcanoes is usually great because ______________ event is predictable.
A.either
B.any
C.neither
D.both