Weareverytired,weshouldhave       rest.  A.anhalfhour’s...

問題詳情：

We are very tired, we should have        rest.

   A. an half hour’s           B. a half hour’s     

   C. half an hour’s           D. half a hour’s

【回答】

C

知識點：構詞法

題型：選擇題