As there is less coal and oil, scientists are exploring new ways of making use of _____ energy, such as sunlight, wind, and water for power and fuel.
| A．primary | B．alternative |
| C．instant | D．unique |
In the English class, our teacher ______ a very good suggestion that each of us can write about a section of this topic.
| A．went along with | B．kept up with |
| C．came up with | D．put up with |
Jimmy didn’t notice his head teacher entering his bed room. He _____a phone call.
| A．answered | B．has answered | C．was answering | D．is answering |
— Excuse me, where does Tom live?
— He lives _____ to the train station.
| A．closely | B．close | C．closed | D．closing |
_____ we choose healthy food for our main meals, we probably still need to exercise now and then.
| A．Unless | B．As though | C．Until | D．Even if |
— Do you know something about Kwanzaa?
— It is _____festival celebrating the culture and history of African Americans.
| A．a seven-day | B．a seven-days | C．a seven day | D．seven days |