第3题: [单项选择]I would like your authorization to trim the part of the tree that hangs into my yard. A. sanction B. encouragement C. approval D. attention 参考答案:A 答案解析:辨义: A.sanction批准、允许;B.encouragement鼓励;C.approval同意、赞同;D.attention注意。根据句子上下文意思,对应词应选A,sanction。故正确答案为