— My room gets very cold at night.— __________.
Their bright eyes and smiling faces the impression that they were very excited. A determined B. conveyed C shaped D functioned
The World Health Organization expects a vaccine(疫苗)against H1N1 to be by September or October this year.
Do swim with others. Otherwise, you .
As is known to all, to smoking will do harm to your health.
the exploration of the botanical world on a large scale.