【单选题】 Each leader had a solemn look as he signed the peace treaty.
- A. sincere
- B. grave
- C. honest
- D. suspicious
网考网参考答案：B
网考网解析：
solemn：庄严的、郑重的、严肃的，和grave(严肃的、严重的)意思有相同之处；sincere：真诚的；honest：诚实的；suspicious：怀疑的。 查看试题解析出处>>
【单选题】 Each leader had a solemn look as he signed the peace treaty.
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