作业帮Up to now air pollution _____(do)great harm to human beings.
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Up to now air pollution _____(do)great harm to human beings.
Up to now air pollution _____(do)great harm to human beings.
Up to now air pollution _____(do)great harm to human beings.
up to now =so far,
pollution 是不可数名词.has done
has done
up to now表示迄今为止,可以说是现在完成时的标志,强调了动作对现在的影响.
have done
has done
Up to now air pollution _____(do)great harm to human beings.
UP to now
up to now 造句
up to now 造句
just now ,so far ,up to now
now it's up to
up to now什么意思?
Up to now的用法
用 up to now 造句
up till now 与up to now区别
up to now和up till now有什么区别
up till now和up to now的区别jiji
up to now 和 up till now 的区别up to now和up till now的区别.
up till now/up until now/up to now这三个用法有什么区别求解
Up till now有这种说法吗?Up till now是不是等于Up to now?
air china flight()to kunming is now boarding through gate ()
It'S Up To You Now 歌词
up to now的中文意思是什么?