完成句子:用所给单词或词组的适当形式填空. 1．If we don't stop the population, there will be only stan

完成句子：用所给单词或词组的适当形式填空。

1．If we don't stop ________ the population, there will be only standing room left for us next century.

2．Something must be done to protect the wild animals so that they won't ________ so soon.

3．________, his written English is much better than his spoken English.

4．The number of the tigers in China is reducing, so we must protect them, especially the tigers ________.

5．There are many reasons for animals' dying out, but the most important one is ________ that humans have ________.

6．In all there are probably ________ a total of 400 tigers left in China.

7．Strong winds can also ________ the valuable soil that lies on the top of the fields.

8．In winter, frost ________ water ________ ice in the north of China.

9．Both the hour hand and the minute hand ________ twelve. So we know it is noon now.

10．The man ________ not ________ the position. We must decide on a time and place for a meeting and discuss this problem.

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