是when did it started还是when did it start?

是when did it started还是when did it start? -关于when i first started to learn English,I did not like it because it was so hard的答案 When did it start? -when did it begin to snow?-it started ___the night.A.during B.by C.from D.at选择的具体原因呢? when did it begin to snow it started --the nigtht a.during b.by c.from d.at 为什么选择A如题 when did you have it when did it start? 解释 When did you start your work?——I__it until 11:50p.m.I think I__finish it today.A.started to do /can't B.didn't start to do/can C.started do/can D.didn't start to do/can't到底是b还是d啊？ 告诉我其他选项的错误之处就好了,1.—Your book,Tom?—No,Mom,it's my friend's.—remember to return it to ——name is on it.答案是whosever ,为什么不用 whose2.---When did it begin to snow ----It started ______ the night.A durin when did you start working?I started work when I was twenty-two为什么第一句work 是动名词,第二句是原先. 快点——When did it begin to snow?——It started _快点——When did it begin to snow?——It started ____ the night.A、during B、by C、from D、atYoung as he is,David has gained ____ rich experience in ____ society.A、the; the B、a; when did you start your homeworki________it until 10p.m.i think i_______hardly finish it today.A.started to do;can'tB.didn'tstart to do;can'tC.started to do;can D.didn't start to do;can 请问When I started ice-skating与When did i start ice-skating,哪个对?谢谢! When it started to rain ,they____ into the car I can't remember__________ you started doing the work.A.that it was when B.when it was that C.when was it thatD.that was it when 正确答案是B,为什么答案不是C? When people first started snowboarding,it was only known about by a small number of young people.是啥意思 When did you ___ today?In the morning.A.started reading B.started read C.startreading D.start read 42.A:When did it begin to snow?B:It started ______ thenight.A.during B.by C.from D.at答案给的A,选项C是不是也可以?