—Whatwasyourbrotherdoingatthistimeyesterday?  —Hewaswat...

問題詳情：

—What was your brother doing at this time yesterday?

   —He was watching TV _________ I was reading a book.

   A. as soon as        B. until        C. after                D. while

【回答】

D

知識點：連詞

題型：選擇題