—Isleptforonlyfivehourslastnight. —Oh,that’stoobad.Enou...

問題詳情：

— I slept for only five hours last night.

 — Oh, that’s too bad. Enough sleep is ______ to your health.

       A. similar               B. harmful             C. friendly             D. necessary

【回答】

D

知識點：相似 相近詞比較

題型：選擇題