问题
选择题
(2013·四川省都江堰市二模)—Mike, I can't find my watch anywhere.
—You ________ it while working out.
A．may have lost
B．could have lost
C．would have lost
D．should have lost
答案
答案：A
选A 考查情态动词。句意：“Mike，我哪儿也找不到我的手表。”“你有可能在锻炼身体时丢了。”may have done表示对已经发生的事情的推测，相当于“可能，大概”，符合语境。