My uncle is leaving _____________ Sydney next weekend.
People have ____too many trees to make desks, chairs, chopsticks and so on.
-----What are you going to do during the summer vacation?-----I am going to _____a new hobby like swimming or dancing.
Jim wants to hang out with his friends at night, but his parents don`t allow him _____so.
The girl in the classroom_____ be Mary. She called me from Beijing just now.
-----You should ____ the customers some tea before meals.----But they said they couldn`t wait to eat.