(28)_____
A.enrich
B.change
C.make
D.let

(29)_____
A.to
B.towards
C.at
D.into

(31)_____
A.gets
B.changes
C.turns
D.becomes

You should keep this bottle out of children’s reach.
A.This bottle should be kept out of children’s reach.
B.This bottle should be keep out of children’s reach.
C.This bottle should kept out of children’s reach.
D.This bottle of children’s reach should be kept out.

Why do parents want their children to learn how to use a computer from an early age?
A.Because they are afraid their children will become competitive.
B.Because they want their children to be well prepared for their future.
C.Because this is what all the other parents seem to do.
D.Because they believe their children will have difficulty learning to use one if they don't start early.

He lost the race because he _______ petrol on the last lap.
A.put out of
B.got out of
C.run out of
D.made out of

The development of the habitat wildlife reserves helps _________ .
A.develop commercial trade and overhunting
B.make a list of endangered species
C.save a large number of endangered species
D.enacted laws to protect wildlife

Many educationalists feel that continue _______ is fairer than formal examinations.
A.judgment
B.assignment
C.assessment
D.cramming

Don’t be late for the class often, _______ people will think you are a disobedient student.
A.otherwise
B.if not
C.or so
D.unless

It was the great book that could not put it _________ .
A.on
B.in
C.down
D.up