A.easyB.easilyC.seriousD.seriouslyTake it（）It is nothin……

单项选择题I'm（）to graduate in the next half of the year.

A.owing
B.thanks
C.due
D.because

单项选择题When I came through the customs at the airport, I had to pay（）on a clock I had bought.

A.taxes
B.duty
C.fines
D.fees

单项选择题Each year in the United States, many black teenagers（）of school, either because they cannot keep up or they have to work to support their family.

A.go out
B.drop out
C.check out
D.pull out

单项选择题Attendance at football matches have（）since the coming of television.

A.dropped in
B.dropped off
C.dropped out
D.dropped down

单项选择题The engine has broken and the boat is（）on the water.

A.flowing
B.floating
C.drifting
D.sailing

单项选择题The terrible noise is（）me mad.

A.turning
B.setting
C.driving
D.putting

单项选择题Let's drink（）Dicks' success in business.

A.of
B.for
C.to
D.with

单项选择题The student found the novel（） It provided him with so much information about the subject.

A.enlightening
B.confusing
C.frustrating
D.delighting

单项选择题A baby might show fear of an unfamiliar adult,（）he is likely to smile and reach out to another infant.

A.if
B.wherever
C.so that
D.whereas

单项选择题（）with the size of the whole earth, the highest mountains do not seem high at all.

A.If you compare
B.Compare them
C.When compared
D.A comparison

单项选择题It is useful to science（）the earth as an object in space.

A.to consider
B.which considers
C.considers
D.the consideration of

单项选择题We must（）that the experiment is controlled as rigidly as possible.

A.assure
B.secure
C.ensure
D.issue

单项选择题Be careful,（）you'll fall down.

A.on the contrary
B.or rather
C.or else
D.as for

单项选择题（）the movie I would have finished my paper last Sunday.

A.In spite of
B.Butf or
C.Because of
D.As for

单项选择题The boy ran out of the classroom without the teacher's（）

A.command
B.conviction
C.consent
D.compromise