-Would you like to join us in the game?-________, for I have something important to do.
Stephen Hawking believes that the earth is unlikely to be the only planet_______ life has developed gradually.(2010 .福建)
My mother is being unreasonable; she doesn't allow me to go out until I have the room _______up.
Yesterday I went out to see a film with my parents, after which _______three of us had a big dinner in a restaurant nearby.
Even if the treatment_______, there is still no magic medicine for patients in the late stages of all AIDS.
We hope that you can _______ practical ideas to deal with this problem.