1.They'll go hiking tomorrow______it doesn't rain.

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1.They'll go hiking tomorrow______it doesn't rain.
A.if B.unless C.when
2._____the last day of the year,the father called his son to him.
A.at B.on C.in
3.There will be welve and a half billion people on the earth in 2100,won't there?
(做肯定回答）
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4.翻译
In the developing countries,more than one billion people are still living below the poverty line.
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请速度回答.
图片与问题无关

1.A
2.B
3.Yes,there will.
4.在发展中国家有超过十亿人仍生活在贫困线以下.

1.They'll go hiking tomorrow______it doesn't rain. They said if it doesn't rain,they will go hiking next week. If it doesn't rain tomorrow ,I'll go hiking.为什么用doesn't而不用is 英语如下几道题目1.If it doesn't rain tomorrow,we'll go to the park.= if it___tomorrow,we'll go swimming.选择A.isn't rain B.doesn't I'll go to the zoo with you if it doesn't rain同义句：I‘ll go to We'll go for a picnic if ir this friday A.isn't rain B.doesn We'll go to visit Tian'anmen Square ________ it doesn't rain We'll go to visit the Great Wall__it doesn't rain tomorrow If it doesn’t rain tomorrow,we’ll go to have a picnic.同义为什么是If it doesn't rain tomorrow,we'll go there.而不是If it isn' I'll go to the park if it( )next week.A.doesn't rain.B.won't