1 . They are busy _______(装载) the ship with goods quickly to meet the deadline. （根据汉语意思填空）

2 . New products will be advertised many times before____________（put) onto the market. (所给词的适当形式填空）

3 . If mankind toys with nature in this way, we may be on the way to______________（destroy) our future. (所给词的适当形式填空）

4 . She insisted on ______ (check) everything herself. (所给词的适当形式填空）

5 . Most living creatures are capable of ____________ (适应) when they are forced to do so. (根据汉语提示填空)

6 . There is ample scientific evidence to support our instinct that ____________ (围绕；包围) by plants is good for health. (根据汉语提示填空)

7 . I would advise people to think very carefully about c__________ (承诺) themselves to working Sundays. (根据汉语提示单词拼写)

8 . _______ (admit) to a top high school, as many parents believe, will guarantee their children a good university. (所给词的正确形式填空)

9 . I think it no use________ (point) out the stupidity of his behavior, because he is so arrogant. (所给词的适当形式填空）

10 . ---What made he upset?   
---______.

A．Because of losing her key	B．Because she lost her key
C．Losing her key	D．Having lost her key