The opening ceremony is to be held in the lecture hall this afternoon, _____ can seat 400 people.
| A．where | B．when | C．that | D．which |
This is an illness that can result in total blindness if_______.
| A．to leave untreating | B．left untreated | C．leaving untreating | D．is left untreated |
The dying old man opened his mouth as if_______something.
| A．to say | B．saying | C．to have said | D．was saying |
—Why do you want the book so much?
—_______, sir.
| A．Studying | B．Studies | C．Studied | D．To study |
—I hate talking with that guy. Look, he is coming. What should I do?
—Don’t speak until_______.
| A．speaking | B．spoken to | C．spoken | D．speaking to |
I don’t know if you noticed their absence or not, but we ________.
| A．did | B．have | C．had | D．were |