it ______whether she will continue her work in the hospital

题目

it ______whether she will continue her work in the hospital
A)has not been decided
B)is not deciding
C)does not decide
D)has not decide
请问此句中的it 指代什么
2)come and see me ______two or three_______
A)for,days
B)after,days
C)in,days'time
D)during,day time
请说明选择的理由,为什么不能用A和B

答案

it指whether she will continue her work in the hospital
第二题只呢用in,只有in或within能表将来时,没有必要解释A和B