[ Tenses ]
Complete the sentence to show that one past action happened before another: By the time the firefighters arrived, the residents _____ the building.
A. already evacuated
B. had already evacuated
C. were already evacuating
D. evacuate

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Verbs: Action, Linking, and Helping › ViewKatie sings her favorite song.
What type of verb is the underlined verb?
___
A. Action Verb
B. Linking Verb
C. Helping Verb
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I’m very interested in …………………….. history, especially ………………….. history of Asian countries.
A. a – a
B. an – the
C. the – the
D. x – x
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A. in
B. on
C. at
Vocabulary › View
What do you call a round, green vegetable with many leaves?
A. onion
B. cabbage
C. pumpkin
