—Mary,canyouhelpme?—Waitamoment.I        dinnernow.A.co...

問題詳情：

— Mary, can you help me?

— Wait a moment. I         dinner now.

A. cook                      B. cooked            C. was cooking    D. am cooking

【回答】

D

知識點：動詞時態

題型：選擇題