By the end of last week, she______in the west of China for two months helping the homeless children.
---Where is Tom? ---He _____ in the room.
Sam has a bike. He ______ it to school every day.
—Can Tim play _________ chess? —Yes. And he can play _________ drums, too.
Be______ ! Your father is sleeping.
For some students in a small village, it’s difficult ______ school.