試題詳解

21. Husband: I’m exhausted!____________ Wife: But it helps protect the environment. Husband: I know. Are there easier ways of doing it? It takes too much time to classify things. Plastic bottles in this bag, regular garbage in that one…. It drives me crazy. Wife: Why don’t you take a break? I’ll take care of it.
(A) We have only one earth.
(B) Clean air is what we need now.
(C) I think recycling is just a waste of time.
(D) Environmental protection is really important.