–Shall we go out for a walk? –Sorry. This is not the right __ to invite me. I am too tired to walk.
Tom is really upset about losing the game, but I think he will ________ it soon.
While I ___________ TV, the bell rang.
Xu Qian is a funny girl. She loves to __________ jokes.
—How do you study English well? —__________ working hard.
—It looks like rain, __________? —Yes, it does. And I forgot my umbrella.