That was all ______ could do in such a poor financial situation.
| A．one | B．the | C．a | D．first |
I could just see a car in the distance, but I couldn’t _____ what color it was.
| A．look out | B．get across | C．make out | D．take after |
What did you ____ me ____? I’m a teacher, not a doctor.
| A．take; over | B．take; up | C．take; off | D．take; for |
The new discovery is of ________.
| A．great significance | B．very significance |
| C．great significant | D．very importance |
Once _____ , the machine will keep running.
| A．start | B．started | C．to start | D．starting |
____ in thought, he almost ran into the car in front him.
| A．Losing | B．Having lost | C．Lost | D．To lose |