题目内容：

We havent met each other for about two years同义句two years——,——,——We met last

优质解答

has passed since
two years 虽是复数,但被看成是一个时间段,所以接单数谓语 has
since 和现在完成时连用

追问：

还有一个 the dog couldnt decide where he could hide the bone 同义 the dog couldnt decide ——，——，——the bone

追答：

where to hide