單項(xiàng)選擇題We must()that the experiment is controlled as rigidly as possible.

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


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1.單項(xiàng)選擇題Be careful,()you'll fall down.

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

2.單項(xiàng)選擇題()the movie I would have finished my paper last Sunday.

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

3.單項(xiàng)選擇題The boy ran out of the classroom without the teacher's()

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

4.單項(xiàng)選擇題I'm sorry I forgot to write; I had so much else()my mind.

A.over
B.for
C.on
D.about

5.單項(xiàng)選擇題I don't know how we can make()on the timetable for any more courses.

A.schedule
B.place
C.plan
D.room