Are you sure you have to

Are you sure you have to
I don't know_____I can do it if not now
A where B when C why D how
______you didn't speak clearly_____ I didn't hear well .Whichever it is,please speak again
A Neither nor B Not only,but also C Either,or DNot,but

1.bwhen 译文是我不知道如果我现在不的话什么时候可以!
2.1是双重否定,意思正好和原句相反
2是说两者都是
3是2者选一种情况,
4就是说我没听清!
从后句whichever不管是那种看,应该选3

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