The mother believes that John's stupid, but it's different _____ of Mary; she's just lazy.
---Will this fish_____ until tomorrow?---Only if you put it in the fridge.
Uncle Wang is a genius cook and we_____ never get enough of his cookies.
If a substance has a higher density, ____ 2, 000kg/ m³, it will not float on water.
Had it not been for the fact that she_____ in the leg, she might have passed the exam.
---What do you think of Jack?---He is not a bad boy. ______, he’s a pretty good one.