—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 |
________, Mr. Smith managed to send his daughter to school.
| A．As he was a poor man | B．A poor man as he was |
| C．Poor man as was he | D．Poor man as he was |
The government managed to have two chemical factories built, though _____ by the citizens.
| A．being opposed to | B．opposed to | C．was opposed to | D．having been opposed to |
— Shall Mary come to the concert with us？
－Not_____she has finished her paper．
| A．since | B．once | C．when | D．unless |