A serious study of physics is impossible ________ some knowledge of mathematics.
| A．against | B．before |
| C．beyond | D．without |
_____ in her maths homework, Amy kept thinking and writing for an hour in her study.
| A．Deeply absorbed |
| B．Having deeply absorbed |
| C．Deeply being absorbed |
| D．Having been deeply absorbed |
They were in great need of help then. Therefore, your timely support certainly made a(n) _____.
| A．deal | B．difference | C．decision | D．effort |
When first seeing Masaccio’s paintings, people were convinced they were looking through _____ hole in _____ wall at _____ real scene.
| A．the; a; the | B．a; a; a |
| C．a; the; the | D．a; the; a |
It was in this house ________ the villagers held the secret meeting.
| A．where | B．in which |
| C．that | D．when |
The little boy won’t go to sleep ________ his mother tells him a bedtime story.
| A．or | B．but | C．whether | D．unless |