You should ________ the flowers once a week.
My parents often______ me some gifts on my birthday.
— Must we get to the airport before 8 o’clock?— No, you _____. The plane takes off at 12 o’clock.
Which is ____________, the telephone, the computer or the light bulb?
There ______ a park near here. Shall we take a walk?
— ______ is a ticket to Garden Expo?— It’s about 100 yuan.