i don"t konw which sweater _____(choose)

i don"t konw which sweater _____(choose) I don't know which sweater _____(choose) I don't know which sweater to choose.动名词 I don't konw which one i will choose.I don't know _________o I don,t know which one _____ （choose) I don't know which watch _____(choose). I don't know which sweater to choose.改为同义句 I haven’t decided which _____(choose) ----When _____ the meeting _____?------I don't konw yet. I don't konw I don‘t konw I don't konw .