【题目】Earth Day is celebration of life and our planet. It is a reminder that we need to________the world we live in and that we should learn to respect life and nature.
A．care about
B．think of
C．refer to
D．watch out
在线课程【答案】A
【解析】后一句意思：这提醒我们有必要关注我们所居住的世界而且我们应该学会尊重生命和自然。care about“关注”。