四六级考试

【单选题】
A、On 5 June.
B．On 20 March.
C．On 15 July.
D．On 26April.

网考网参考答案：A
网考网解析：
[听力原文] Which day of the year is World Environment Day commemorated document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>