Alison, I’m sorry. I can’t come to the wedding with you tomorrow morning. — ________? — My grandma was severely ill, so I have to stay in the hospital to look after her.

Susan’s parents have bought a large house with a swimming pool.—It be very expensive.

When Becky ____ after school, she saw her parents in the living-room.

Some questions _______at their class meeting last week.

To make China _________ the USA in science and technology, we need more talents.