1.根据括弧中的提示写出形式和拼写正确的单词

1.根据括弧中的提示写出形式和拼写正确的单词
(convert) to gas central heating will save you a lot of money.
2.根据括弧中的提示写出形式和拼写正确的单词
The federal government appealed for(restrain),insisting that the crisis could be resolved without the use of force.
3.根据括弧中的提示写出形式和拼写正确的单词
Sleep,just like eating,toileting and dressing is a daily habit that(requirement) regular training before it becomes properly established.
4.根据括弧中的提示写出形式和拼写正确的单词
Most of us get easily(irritable),while waiting for some picture to be downloaded,especially when we are in a hurry.
5.根据括弧中的提示写出形式和拼写正确的单词
The Worldwide Fund for Nature is trying to save many endangered rainforest species that are threatened with e(绝种).
6.根据括弧中的提示写出形式和拼写正确的单词
The issue was whether or not bacteria would c(污染) the local ecosystem.
in his body would contaminate
7.根据括弧中的提示写出形式和拼写正确的单词
As you are usually very prompt in settling your account,we wonder whether there is any special reason why we have not received payment of the above account,already one month o(过期的).
8.根据括弧中的提示写出形式和拼写正确的单词
The new Volkswagen is much more streamlined and almost all the body panels are c(弯曲的).
9.根据括弧中的提示写出形式和拼写正确的单词
If an employee wants to r(辞职),he should notify the employer ahead of time through the enterprise trade union.
10.根据括弧中的提示写出形式和拼写正确的单词
Georgia said it would take a(咄咄逼人的)diplomatic steps to respond to the Russian action in order to defend its rights.

Conversion
restraint
requires
irritated
extinction
contaminate
overdue
curved
resign
aggressive