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It is reported that a small ship ran into a rock at sea, _____ all ten people on board.
| A．killing | B．to kill | C．killed | D．kills |
____ is our belief that improvements in health care will lead to a stronger, more prosperous economy.
| A．As | B．That | C．This | D．It |
Mark was a student at this university from 1999 to 2003, ____ , he studied very hard and was made Chairman of the Students' Union.
| A．during which time | B．for which time |
| C．during whose time | D．by that time |
He is a student at Oxford University, ____for a degree in computer science.
| A．studied | B．studying |
| C．to have studied | D．to be studying |
The Smiths went to the country for the weekend as they ______ to the office.
| A．needn’t have gone | B．mustn’t go |
| C．may not go | D．didn’t have to go |
She thought I was praising her child，_____，in fact，I was scolding him for his bad behaviors at school.
| A．what | B．while | C．so that | D．therefore |