Various optional courses being available, we can choose ________ based on our own interest.
| A．either | B．each | C．one | D．it |
Thebook has been translated into thirty languages since it _____ on the market in 1973.
| A．had come | B．has come | C．came | D．comes |
The results of the final examination _____ known to the students soon.
| A．is being made | B．will be made | C．is made | D．will make |
_____ to his research work, the professor heardlittle about any other things.
| A．Devoting | B．Devoted | C．Having devoted | D．To devote |
The boy with glasses _____ the judge with his attitude and sense of humour.
| A．impressed | B．caused | C．aided | D．preferred |
She shows a very positive _____ to her work.
| A．attitude | B．opinion | C．idea | D．thought |