题目内容：

How many people will there be on the earth 100 years from?同义句转换
How many people will there be on the earth___ 100____?
还有They needed a horse to get to another city in the old days.同义句转换
A horse ____ ____ to get to another city in the old days.

优质解答

after 100 years;
is needed
祝好!