1). ( )Plastics， the machine is light in weight.

A.To make of

B.Having made

C.to be made of

D.Made of

正确答案：D

2). A safety analysis of the target ( ) as a potential danger. Unfortunately, it was never done.

A.would identify

B.will identify

C.would have identified

D.will have identified

正确答案：C

3). It was not until an hour later that we heard ( ) what had happenee.

A.through

B.by

C.about

D.from

正确答案：C

4). He came all the way to China for making friendship ( ) for making money.

A.other than

B.better than

C.more than

D.rather than

正确答案：D

5). "Would you like to go for a walk?""Yes， It's ( )"

A.so warm the day

B.such warm a day

C.so warm a day

D.rather warm a day

正确答案：C

6). The theory is of great importance ( ) the hotter a body is， the more energy it radiates.

A.that

B.when

C.which

D.what

正确答案：A

7). But from the start of their experiments， the Wright brothers found that they needed money to pay ( ) their research.

A.back

B.down

C.for

D.off

正确答案：C

8). Living here at the top of the mountain with no one else near you must bevery ( ).

A.sole

B.alone

C.only

D.lonely

正确答案：D

9). Will you be so kind me a favor，( )Sir ?

A.as to do

B.as doing

C.to do

D.enough to do

正确答案：A

10). His ears are highly sensitive ( ) any unusual sound in the machine

A.of

B.on

C.to

D.by

正确答案：C