單項(xiàng)選擇題（）,we keep records on all the experiments so that we may have enough.

A.As a whole
B.As a rule
C.On the average
D.by all means


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1.單項(xiàng)選擇題We（）the bathroom and plan（）the bedroom this year.

A.painted;topaint
B.ispainting;painting
C.paint;topaint
D.have painted;to paint

2.單項(xiàng)選擇題One of the benefits of the new model is that it is easier（）than the old one.

A.operating
B.to be operated
C.to operate
D.operated

3.單項(xiàng)選擇題What（）of blood does Tom have?

A.kind
B.type
C.sort
D.category

4.單項(xiàng)選擇題Let's not wait any longer, he might not（）at all.

A.turn over
B.turn up
C.turn on
D.turn down

5.單項(xiàng)選擇題One day while Mr. King was working, he had a(an)（）and his left leg was badly injured.

A.business
B.accident
C.matter
D.event