"Not all of the snakes were dangerous." this means _________.
A. none of the snakes were dangerous B. all of the snakes were not dangerous
C. few of the snakes were dangerous D. no snakes were dangerous
It was not until midnight _________ his father came back.
A. when B. while C. that D. as
________ she has made up her mind, nothing can change it.
A. Unless B. Once C. Although D. As soon as
It is always difficult being in a foreign country, _________ if you don’t speak the language.
A. extremely B. naturally C. specially D. especially
He thought of a very good way to stop the car ________.
A. to steal B. to be stolen C. from stealing D. from being stolen
---I didn’t expect the job would be so hard.
---You _________ of that earlier.
A. must think B. ought to think
C. should have thought D. must have thought
