I'm not sure what (to) expect中的“to”可以改成什么单词?

I'm not sure what I can buy for my mother.（t同义句转换） I'm not sure ___ ___ ___ for my mother. I'm not sure I'm not sure what's playing, I hedged. I'm not sure what I should expect.（改为同义句） I‘m not sure what ____ ____. I'm not sure what I should expect（改为简单句） I'm not sure ___ ___ expect I'm not sure what to expect(同义句）I'm not sure ______ ______ _____ ______ I'm not sure 快 I'm not sure yet. I'm not sure()( 至今) I'm not sure what I'm in a mood for?是啥意思 I'm not sure what I should do next 求这句话的同义句改为I'm not sure what __ __ next,一空一词! I'M not sure what I shuold do.改同意句.I'M not sure what I shuold do.【改同义句】I'M not sure ____ _____ _____. what't your plan for the May Day holiday,Tom? I'm not sure.I visit the Great Wall.A.may B can C need D must 英语快点有人回答,我给多多积分I'm not sure what to e______because I haven't been there before. I am not sure what your talking I'm not sure what I should do改为同义句? not,i'm,sure,i,what,do,should连词成句 what the meaning ofI'm not sure I am up for this