Many scientists believe sea levels ______ by more than one meter by the end of the 21st century.
I want to learn about your holidays.Could you tell me how you usually ________Thanksgiving Day in your country?
We used to see each other ________, but I haven't heard from him since last year.
---Is it that the spaceship will be launched within this week?----No,I don`t think so.
Bill suggested a meeting on what to do for the Shanghai Expo during the vacation.
—We don’t have enough books .What would you like to ?—How about two of us one?