—Why are your eyes so red? You _______ have slept well last night.—Yeah, I stayed up late writing a report.

I can’t find my socks. Where ________ I have dropped them?

—What do you think of Peter?—He ______ be really difficult to get along with even though he’s a nice person in general.

Who ________ a lady like Susan Boyle, once an ordinary woman in Scotland, would achieve overnight success at Britain’s Got Talent Show?

(2013·高考江西卷)When I was a child，I________watch TV whenever I wanted to.