My parents are going to buy a new TV______two months.( A )

问题描述:

My parents are going to buy a new TV______two months.( A )
A,in B,after C.for D,before
为什么不能选B呢,

in +时间段:与将来时连用 (此题正是如此)after +时间段:与过去时连用 after +时间点:可与将来时连用 He will be back in two hours. He came back after two hours. He will be back after two o'clock.in+一段...