Question

—We weren’t sure which way to go. In the end we turned right.
—You _____ the wrong way. You _____ left.

A．went; should have turned	B．have gone; must turn	C．went; would have turned
D．had gone; must have turned

Answer 1

A

首先来确定时态是在描述过去，故先排除B，再根据含义来选正确的情态动词，既然说对方走错了路，那么下面肯定是告诉对方“本该”，用should have done结构。