Question

______ a little earlier, you could have caught the last bus.

A．If you would arrive

B．If you arrived

C．Should you arrive

D．Had you arrived

Answer 1

D

试题分析：句意：如果你早一些到达，你就可能赶上最后一班车了。从you could have caught the last bus.可知前面是和过去相反的虚拟条件句，If you had arrived a little earlier,这时可以省略if，提前had，所以选D。