几个英语题,帮忙回答下,详细些1.-AreyougoingoGuilinbyplane?-It'sfastbutexpensive,soI'mnotsure.I什么takeatrain.A.shouldB.mayC.mustD.will这个我看哪个都可以啊2.JoehasbeenstudyingChineseforthree

　　几个英语题,帮忙回答下,详细些

　　1.-AreyougoingoGuilinbyplane?

　　-It'sfastbutexpensive,soI'mnotsure.I什么takeatrain.

　　A.shouldB.mayC.mustD.will

　　这个我看哪个都可以啊

　　2.JoehasbeenstudyingChineseforthreemonths,buthecan什么understandpeoplewhentheyspeakChinese.

　　A.nearlyB.certainlyC.usuallyD.hardly

　　这题凭什么就选D呢?

　　3.-DoyoumindifIsithere?

　　-什么.It'sforMissWood.

　　A.NotatallB.Nevermind

　　C.You'dbetternotD.Ofcoursenot

　　为什么不选D

　　4.Thebook什么fromthelibrarymustbereturnedthisafternoon.

　　A.whichyouborrowedit

　　B.whyyouborrowed

　　C.youborrowed

　　D.whatyouborrowed

　　为什么不选A