If the motorbike driver had slowed down when he turned, the accident could have been _____．

Some farmers are no longer _____ with two harvests per year; they are now striving for three．

None of us expected Mr．Johnson to _____ at the party．We thought he was still abroad．

The news that Shenzhou VII returned to the earth successfully _____ throughout the country．

With so much noise of the traffic, I couldn’t ______ and do my research work．

While in university, we were offered a number of afterschool activities to _____ our social skills．

---- You’re coughing badly, Martin．Why not give up smoking?
---- Give up smoking? Easier said than done, Amy．Once you _____ the habit of smoking, it is very hard for you to______．

Martin Luther King Jr．was _____ the Noble Peace Prize of 1964 for advocating nonviolence policy in the movement for civil rights．

Many of the earth’s plants and animals have already ______ and several other species are endangered．

We should always keep in mind that accidents _______ from carelessness while driving．