题目内容

填空题。
1. A _____ sea has no, or only small waves, and a _____ film has no speech.
2. There is an article that _____ the rise of the prices. (concern)
3. The children are rather _____ about their mother's health. (concern)
4. Officials should _____ themselves _____ public affairs. (concern)
5. During his last lecture, the scientist _____ (觉得) easier to explain the theory
    to those with some background knowledge. (find)
6. We're going to play basketball. Would you like to _____? (join in / attend)
1. calm, silent  2. concerns  3. concerned  4. concern; with  5. found it/found (that) it was
6. join in
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