_______ one and a half months enough for the project to be finished?—I am afraid not. The professor is ill and only after he recovers ________ go on with it.
―It seems that you enjoy the hot pot a lot.―Yes. I ________ living in Chongqing now.
Smoking is bad for your health. You’d better _______.
_____ scientists could make clones of human beings?[ ]
The Eiffel Tower is made ________ metal. [ ]