Is your father in?－ No, he ______ for three hours.

Are people around you used to _______things online?－Yes. It’s much easier, and also cheaper.

Are you going to see the film tomorrow?－I have no idea. If you don’t, ______.

Liu Mei wants ____ a doctor when she grows up.

My uncle arrived at the airport _______ the morning of May 3rd. [ ]