题目内容：
20. I tried hard to get some information about the new technology out of his mouth, but he remained________.( )(本题3.5分)
A、 quiet
B、 secret
C、 silent
D、 calm
参考答案：
选择题：20. I tried hard to get some information about the
- 题目分类：赤峰学院- 综合英语II(专升本)
- 题目类型：选择题
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20. I tried hard to get some information about the new technology out of his mouth, but he remained________.( )(本题3.5分)
A、 quiet
B、 secret
C、 silent
D、 calm