I usually go to bed late at night. And you? —_______. [ ]

I bought two teddy bears. One is for my sister, ________ is for my friend Tom.

_________of people will visit Beihai .

Some researchers believe that there is no doubt ______a cure for AIDS will be found.

Excuse me, Jim. Do you have any books about Chinese history?―Yes. ______ book above the shelf is _______ useful one.