Mary couldn’t________ the terrible working conditions in that factory and resigned last week．
| A．catch up with | B．keep up with |
| C．put up with | D．come up with |
How did you such a clever way out of difficulty?
| A．think over | B．think about | C．think up | D．think on |
You will sooner or later if you keep working like that.
| A．break off | B．break down | C．break into | D．break out |
. We wanted to get home before dark, but it didn’t quite _____ as planned.
| A．find out | B．turn out | C．carry out | D．set out |
. —Why do you look worried?
—There are so many problems______.
| A．remaining to settle | B．remained settling |
| C．remaining to be settled | D．remained to be settled |
With drink and food ____, the prisoner had to walk out of the cave where he was hiding.
| A．run out | B．run out of | C．running out | D．running out of |