Simon wanted to study abroad， but his mother asked him to ______.

题文 The girl seemed too busy __________ her test _________ her mother enter the room.

Thank you very much for showing me how to use the computer. — ________.

Oh, I have a nosebleed. What should I do first— __________.

Could I take this seat, Sir— Sorry, you. These seats here are all for the old people.