Last week, while everyone ________ (attend) the presentation, I ________ ...

★ Present and Past Tenses

Last week, while everyone ________ (attend) the presentation, I ________ (realize) I left my notes at home.

A. attended / realized

B. attended / was realizing

C. was attending / realized

D. was attending / was realizing

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Usually, the boss ________ (arrive) at the office early.

A. arrives

B. is arriving

C. arrived

D. was arriving