问题
选择题
-- Oh, my god! I just missed the last bus back home.
-- That’s really bad. I’m sure you ____ it, but you were not in a hurry.
A．could catch
B．had caught
C．could have caught
D．would catch
答案
答案：C
考查情态动词。C项could have done意为“本可以做的事但没做”