百分百把握的答There will be only one city in100 years (in 100 years划线提问)应该以How soon 还是when 提问?百分百把握的答He usually exercises.同义句He usually ______ _______at the weekend=on weekend还是=on weekends

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百分百把握的答There will be only one city in100 years (in 100 years划线提问)应该以How soon 还是when 提问?百分百把握的答He usually exercises.同义句He usually ______ _______at the weekend=on weekend还是=on weekends
百分百把握的答
There will be only one city in100 years (in 100 years划线提问)
应该以How soon 还是when 提问?百分百把握的答
He usually exercises.同义句
He usually ______ _______
at the weekend=on weekend还是=on weekends

百分百把握的答There will be only one city in100 years (in 100 years划线提问)应该以How soon 还是when 提问?百分百把握的答He usually exercises.同义句He usually ______ _______at the weekend=on weekend还是=on weekends
1 用how soon,因为in 100years是一个时间长度,不是准确时间.when的话通常是问一个固定的时间.
第二题要用on weekends,因为从usually和动词exercises加了s判断这是一般现在时,就是平时会做的事(不是昨天或者今天只做一次,而是有一定规律地在日常生活中都会做,就是一般现在时),说明他不止是某个周末锻炼,而是很多周末都有锻炼这个习惯,所以要用weekends.