Our government has taken some measures to overcome the lack of electricity, but it may take some time _____ we have enough power．
| A．since | B．after | C．unless | D．before |
The wild flowers looked like a soft orange blanket the desert.
| A．covering | B．covered | C．cover | D．to cover |
Many of the scientists and engineers are judged_______ how great their achievements are.
| A．in spite of | B．in ways of | C．in favor of | D．in terms of |
We welcome rain, but a（an）_______ large amount of rainfall will cause floods.
| A．eventually | B．extremely | C．gradually | D．constantly |
Your ideas are very interesting, but we need_________suggestions to get us out of the mess．
| A．impressive | B．similar | C．practical | D．traditional |
In the past, he rarely spoke unless others were speaking about something that ______ to him．
| A．adapted | B．appealed | C．addicted | D．applied |