.
He made the choice to give all his money away, ______, he said, brought him happiness.
| A．it | B．that | C．which | D．this |
The thick mist _____ gradually as the sun rises．
| A．passes out | B．passes on |
| C．passes off | D．passes away |
My parents were not happy as they don't approve ____ out at night．
| A．of Mary and me staying | B．of me and Mary staying |
| C．to Mary's and my staying | D．when Mary and me stay |
We haven't seen each other for 20 years, but I recognized him _____ I saw him．
Which of the following is wrong ?
| A．immediately | B．the moment |
| C．as soon as | D．while |
Life is the most important in the world so we should never compromise _____ safety standards．
| A．with | B．between | C．on | D．in |
Generally speaking, when _____ according to the directions, the medicine had no side effect．
| A．take | B．taken | C．to take | D．to be taken |