—Betty, you don’t look well. What's wrong?----I have a fever.—______. You'd better go to see a doctor.
Look, Tony _______ on the grass!
Our teacher is ______ a white dress.
---Are your parents at home, Jane? ---No. They ______ taking a walk in the park.
There are ______ apples in the fridge. You can have one..
I often do my homework ____ the computer.