The clever boy made a hole in the wall, ____ he could see ____ was going on inside the house.
| A．which;what | B．throughwhich;what | C．throughthat;what | D．what;that |
She may be slow but _____ she's reliable.
| A．instead | B．altogether | C．at once | D．at least |
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 |