21. The businessman is always ______. Without resting, he works from 8 a.m. to 10 p.m. every day.(A)
問題詳情
21. The businessman is always ______. Without resting, he works from 8 a.m. to 10 p.m. every day. (A) as busy as a bee (B) as free as a bird (C) as sick as a dog (D) as strong as an ox