—How are you going to spend this weekend? —_________ the weather is fine, we’ll climb Mount Tai.
What did you ________ yesterday?
—What’swrong with you? —_________________.
He used to ________very late, but now he is used to __________early.
Could you_________ when the planes arrives?
—I’m sorry I_______ my exercise book at home. —Don’t forget _______it here tomorrow , please.