The chemistry teacher required the students___more attention ___the lab clean.A.to pay,to keepB.to paying,to keeping C.paying,keeping D.to pay,to keeping求详解

chemistry chemistry What's the chemistry concerned with? You must listen to the teache carefully.改为祈使句____ _____ the teacher carefully,please. what is the relationship between chemistry and nature? she won the Nobel Prize for Chemistry为什么用for fellow of the royal society of chemistry是什么意思 中国人谁是fellow of the royal society of chemistry What's the chemistry concerned with? 什么意思化工、、、、、 This is the professor____taught me chemistry in 1980.急 mary didn't pass the chemistry test.mary ___ ___ pass the chemistry test.(保持原句意思） what season was it?what does his teache probably think about the weather?when icemeltatthe poles,it--------------------- will you【】the teache’s officeA.go B.to go C.go to D.to go to a good teacher is a good ___(infiuence)in the kids' lives. __(teache)kids sounds like fu适当形式 Sat chemistry Chemistry是什么意思 chemistry意思 单词Chemistry