—John always thinks of others instead of himself.—So he does. It is________ him to offer help to others.
The air quality in the city, ______ is shown in the report, has improved over the past two months.
——Look at those clouds!——Don’t worry. it rains, we will still have a great time.
I am listening to music while he is surfing the Internet.
To , we didn’t have breakfast.
, a good idea occurred to him.