問題詳情:
單項填空
從每小題所給的A、B、C、D四個選項中選出一個可以填入空白處的最佳選項。
When the man downstairs knocked at the door, I _______.
A. am doing housework B. was doing housework
C. were doing housework going to do housework
【回答】
B
知識點:動詞時態
題型:選擇題
問題詳情:
單項填空
從每小題所給的A、B、C、D四個選項中選出一個可以填入空白處的最佳選項。
When the man downstairs knocked at the door, I _______.
A. am doing housework B. was doing housework
C. were doing housework going to do housework
【回答】
B
知識點:動詞時態
題型:選擇題