________there are a large number of chemical factories, the air is likely to be polluted.
The matter_______ people’s health surely requires________ carefully.
-----Excuse me, but I wonder if Joan is available at 3:30 this afternoon. -----I’m afraid he ________ Harry Potter and the Philosopher’s Stone.
It is dangerous to allow the children who are ________ swimming in the river.
He________after a few days’ treatment in hospital.
The boy was so ________ about net games that he played online over ten hours every day.