1 . Even the most gifted person can be________(破坏，毁掉) by the wrong instructor. (根据汉语提示单词拼写)

2 . 令我们失望的是，我们的杭州之行被大雨弄得一团糟。(ruin)
_________________________________________

3 . 他一按按钮，电源就被切断了。
The power was_______ _______the_______he pressed the button.

4 . 这款国产电器一经问世便销售火爆。(sell)
_________________

5 . 为了营造舒适的就餐环境，许多餐厅不允许抽烟，这对广大顾客来说是一大福音。(forbid)
_________________

6 . 如果温室效应持续恶化，可以预见沿海城市面临的威胁。(foresee)

7 . It is detective Sam Peterson who is in charge of the case.（同义转换）
It is detective Sam Peterson who _______ _______ _______ _______ the case.

8 . Farming produced more food per person than hunting and gathering, so people were able to raise more children. And, as more children were born, more food ________ (need)．（所给词的适当形式填空）

9 . Listen! The project _________ (discuss) at the meeting now. （所给词的适当形式填空）

10 . Look! The foreign guests ________(show) around our school by Mr. Zhang. （所给词的适当形式填空）