见下.这里的activity 为什么不用复数?There has been a significant amount of activity within the company that has required unparalleled focus and energy to ensure future success

见下.这里的activity 为什么不用复数?There has been a significant amount of activity within the company that has required unparalleled focus and energy to ensure future success here are the result of the student activity survey at Green HighSchool为什么句中的activity不用复数形式,这本来是一道完型填空,填activity的真确形式,请大家说明原因? from activity to activity八下英语课本（go for it）Unit2 的Reading部分的句子.请问为什么可以这样写.即为什么没有冠词而activity用单数形式？ 在阳光的照耀下,这“花”变得五光十色,绚丽无比.（这里为什么用“五光十色”而不用“五颜六色”?） 功的正负这里的功为什么不用管正负? I got very angry.这里的angry为什么不用angrily? 这里的big为什么不用bigger?而用more? 英语翻译Moved by his speech,many people volunteered to join the activity.这里的moved能不能改成Having been moved?为什么? 英语翻译特级,帮个忙啊where little difference is observed in activity and disposition of the enantiomers,racemates may be developed.在这里 develope是开发的意思,racemate就看成是一个药物成分就行,racemates不用翻译,enant physical activity如何翻译比较恰当physical activity是指体力活动还是个人锻炼啊?如果问what kind of physical activity you do usually? 这里的 physical activity指的是哪个方面? Love doesn't want its own way一首诗的一句话.翻译下 直翻译. 这里为什么不用 is not 而用 doesn't young lambs gamboling in the meadow.小羔羊在原野里欢快的跳跃.这里gamboling in the meadow在这里是做什么?最好具体分析下这个简单的句子,为什么不用was gambling . five tons heavy.这里为什么不用weight 英语作文,120单词,An activity for charity3Q,不用太太复杂的 from activity to activity.的意思 spontaneous activity什么是细胞的spontaneuos activity? activity profile是什么意思?这里的profile是性能的意思吗? Did you see the accident,sir?这里为什么用Did而不用Do,谁能解释下...