Let’s go________today.
---Our hometown develops so fast.---That’s true. Great changes ________ there in the past few years.
---Mario used to be short, didn’t he?---________. But now he is tall.
---Do you know if we ________ a picnic next week?---I’m not sure. But if it ________ raining, maybe we will.
Lily has ________ homework and she really doesn’t know ________ first.
--- Excuse me, sir. Smoking ________ in the hospital.---Oh, I’m really sorry.