It was __________________ back home from work.
| 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 |
________there are a large number of chemical factories, the air is likely to be polluted.
| A．Where | B．That | C．Though | D．As |
They weighed the advantages of the operation ______ all the possible risks involved over and over again.
| A．within | B．except | C．behind | D．against |
The young man has been trying everything in his power to please the director, ______ to get a role in the play.
| A．hoped | B．hoping | C．to hope | D．having hoped |
Sometimes we just can’t understand why so many people fail to realize that wealth does not ______ bring happiness?
| A．consequently | B．automatically | C．necessarily | D．particularly |
Research shows that though students benefit from having parents involved at school, _____ happens at home matters much more.
| A．which | B．what | C．that | D．whether |