Not until World War II ______ to use new chemical techniques to purify penicillin.
| A．they managed | B．that they managed |
| C．did they manage | D．they didn’t manage |
Not until I shouted at the top of my voice ______ his head.
| A．that he turned | B．he had turned | C．he didn’t turn | D．did he turn |
I received an invitation to dinner from my friend，and with my work ，I gladly accepted it.
| A．was finished | B．finishing | C．having finished | D．finished |
At the foot of the mountain ____________.
| A．a village lies | B．lies a village | C．does a village lie | D．lying a village |
—Does the idea of working abroad you？—Yes. But I have no chance.
| A．lead to | B．adapt to | C．appeal to | D．contribute to |
You _____ cold if you had put on more clothes the day before yesterday.
| A．won’t catch | B．wouldn’t have caught | C．hadn’t caught | D．haven’t caught |