—Mr. Li, let’s go fishing this weekend with Lao Wang, shall we?—I’d love to, but nobody knows if he _______ free then.
-You were injured in the accident, weren't you ? -________, but look ,I'm all right now.
_______of the money_______been spent recycling the rubbish.
_______yogurt do you need? -Three cups.
_____mothers both work in the same hospital.
In the street I met the professor_______gave us a talk last week.