Only _____ as an interpreter _____ how important it was to practise speaking English.
| A．when did I work…I realized |
| B．when did I work…did I realize |
| C．when I work…did I realize |
| D．when I worked…did I realize |
The____________house smells as if it hasn't been lived in for years.
| A．little white wooden | B．little wooden white |
| C．white wooden little | D．wooden white little |
The old man, ____________abroad for twenty years, is on the way back to his motherland.
| A．to work | B．working | C．to have worked | D．having worked |
A man is being questioned in relation to the ________ murder last night.
| A．advised | B．attended | C．attempted | D．admitted |
It's ten years since the scientist _______on his life's work of discovering the valuable chemical.
| A．made for | B．set out | C．took off | D．turned up |
-- You haven't lost the ticket, have you?
-- _________. I know it's not easy to get another one at the moment.
| A．I hope not | B．Yes, I have | C．I hope so | D．Yes, I’m afraid so |