My father prefers taking a subway to driving his own car. Because the petrol is very expensive.
______ Kathy was watching TV, her mother asked her to go shopping.
If there are _______ people driving, there will be ______ air pollution.
There ________ no good news for you today.
Be careful of the dog! It’s . Keep away from it.
There are always ____interesting stories in the series that ___ many people watch them.