—Ididn'tseeyouatthebeginningofthepartylastnight.—I
- 習題庫
- 關注:3.16W次
問題詳情:
—I didn't see you at the beginning of the party last night.
—I _____ on my biology report at that time.
A. worked B. work . C. was working D. am working
【回答】
C
知識點:過去進行時及其被動式
題型:選擇題
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