問題詳情

【題組】53.Why are trees so important to us?
(A) They give us fresh air.
(B) They clean the world.
(C) They make us sad.
(D) They help us catch the animals.

參考答案

答案：A
難度：非常困難0
統計：A(0),B(0),C(0),D(0),E(0)