题目内容
2. Children under 12 years old in that country be under adult supervision (监管) when in
a public library.
A. must B. may C. can D. need
2. A
2. A解析:四个选项中能够表示“必须” 的只有must。故选A.
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题目内容
2. Children under 12 years old in that country be under adult supervision (监管) when in
a public library.
A. must B. may C. can D. need
2. A解析:四个选项中能够表示“必须” 的只有must。故选A.