I have got a headache.-No wonder. You____in front of the computer too long.[ ]

下列句子，没有语病的一句是（ ）

Thefinalexaminationiscomingupsoon.It’stimeforusto_______ourstudies.

Judy’s never been late for school, ________ she—________. She is always the first to get to school every morning.

When you see the sign “EXIT”, you know you can ________ from here.