If these trouser are too short,buy a bigger( )1 one2 pair3 ones选出选项,并说明选择的理由

are trouser,whose,these?连词成句 If these trouser are too short,buy a bigger( )1 one2 pair3 ones选出选项,并说明选择的理由 ones意思是指人还是指物啊?意思又是什么呢?那么我这里有道题：If these trousers are too short ,buy a bigger ( )A one B pair C ones D trouser为什么这里选pair不选ones呢？ use,you,if,must,you,are,too,fast,riding,these(.) Are these Excuse me ,how much are these postcards?They are for _____ if the cost of o 1.IF YOU SPEAK A LOT,YOU WILL__SPEAK ENGLISH WELL.A.can B.BE ABLE TO C.ARE ABLE TO D.COULD2.Oh,my god!i lost my key ___ the door.at of to about3.Look at your dirty trouser.You'd better___them right now.washed washing wash to wash4.Mary decided ___har My trousers are too old .I want to buy a new__A piece B pair C trouser D trousers说明为什么, No matter if you can understand what are these talking about, These stats are nice.whai if I get all of them? If these jeans are too short,buy a bigger one还是 pair These things can be danger ous if they are not used properly是什么意思? These thing can be dangerous if they are not used properly 连词成句 use,you,if,must,you,are,too,fast,riding,these 英语句子翻译：These plans must be modified, if they are to be used successfully. 尤其是if后面的. Are these your trousers?Yes,these are, these are his shoes.( )are these ()? 英译汉Even if they are on sale,these refrigerators are equal in price to,if not more expensive than,the ones at the other store.