选哪个,请给出原因.A.where B.that C.when D.whichChina's new food law provides for a food recall system______producers have to stop production if their food isn't up to standards.

选哪个,请给出原因.A.involving,that B.involved,that C.invovled,where D.involving,whichThere is a new problem_______in the popularity of private cars ______road conditions need to be improved. 选哪个,请给出原因.A.where B.that C.when D.whichChina's new food law provides for a food recall system______producers have to stop production if their food isn't up to standards. 选哪个,请给出原因.A.were brought up B.brought up C.have been brought up D.are bring upWhether we find a joke funny or not largely depends on where we_______. 选哪个,请给出原因.-----Where's your assignment?-----________.A.I had already handed it in.B.It was handed in.C.It'd been handed in.D.It's been handed in. 选哪个,请给出原因.A.near B.upon C.within D.aroundIt saves time in the kitchen to have things you use a lot _______easy reach. 选哪个,请给出原因.A.used B.has been used C.using D.is usingThe computer,now______by millions of people,has changed the world 选哪个,请给出原因.A.in B.for C.on D.withThe temperature today is very low.It is quite cold______June in shanghai. 选哪个,请给出原因.A.proving B.proved C.was proved D.has been provedThe cause he had devoted himself to _______a perfect success. 选哪个,请给出原因.A.while B.whether C.what D.whichWe thought there were 5 students in the dining hall,_______,in fact,there were 40. 选哪个,请给出原因.A.searching B.to search C.searched D.searchAfter hours________,their patience was rewarded and they found what they were looking for. 选哪个?请给出原因.A.leaving untreated B.leaving untreating C.left untreated D.left untreatingIf_______,the wound in your arm may become infected. Where are the boys?They _basketball over there just now.A were seen play B were seen to play请给出原因 When I called you this morning,nobody answered the phone.Where _______?A.did you go B.were you 选哪个?为什么?请说出两者的具体区别,这是一个高考题，谁能给出个合理的解释？ 选哪个,请给出原因.In that vast desert ______,which really is a wonder of the natureA.lies a large lake B.a large lake lies C.does a large lake lie D.lying a large lake they were pushed farther and farther until they were confined to a reservation in--is now SouthDskoda.a.whichb.whatc.where选哪个为什么请给出详细解释 The driver stepped on the brakes in time____the accident.A:to avoid B:to have avoided选择哪个,请给给出详细原因,我也选的是B，但是答案是A 选哪个,请给出原因.A.while B.in which C.except that D.in thatThe British Museum was unique_______it housed both a national museum of antiquities and a national library in the same buliding. 选哪个,请给出原因.A.speak B.speaking C.spoken D.to speakTo have a good command of a foreign language,we should find opportunities to hear it______as much as possible.