The two things _____ he wasn't sure were the grammar and the idioms.A. about whichB. about that C. in whichD. at which选择哪一个?为什么?

What _____ the price _____ these things? the road _____(connect)the two streets 英语介词句子补充Talk _____ you and your friendsListen ____ dialoguesTell at the class two things you do ___ in a commmon week two things of the same kind等于什么 two things of the same kind等于什么 Tom is _____ of the two boys. The baby _____(sleep) for two hours two things some people The Incas _____(prove) to be great at building things. the world is full of a _____ things she _____ (not,mike) the sour things at all we_____ _____(not)do the same things as other families.we_____ _____(not)do the same things as other families. I bought the bike two years ago.=_____ _____ two years _____ I bought the bike. The two streams are both two meters in width.This strem has the _____ _____ _____ that one. 同义句转换 What’s the English for these things? What _____ these things ______ English? 英语翻译The train would leave _____ two minutes but we just _____ _____ the railway station. Dick is____（tall）of the three boysThere are some ___(different)between the two things “Do two things at the same time”Do you know what’s the meaning?