Scientists say it will be five or six years _____ it is possible to test this medicine on human patients.
|
A．before |
B．that |
C．since |
D．when |
You very fast if you went from New York to Boston in six hours.
|
A．should drive |
B．must have driven |
C．may drive |
D．would have driven[ |
They want to make _______ clear to the public that they are doing an important and
necessary job.
|
A．this |
B．that |
C．it |
D．what |
_____ the child to bed, she began to correct the pupil’s exercise.
|
A．Sending |
B．Being sent |
C．Sent |
D．Having sent |
____ with a difficult situation, Arnold decided to ask his boss for advice.
|
A．To face |
B．Having faced |
C．Faced |
D．Facing |
It was ______ back home after the experiment.
|
A． not until midnight did he go |
B． until midnight that he didn’t go |
|
C． not until midnight that he went |
D． until midnight when he didn’t go |
