[ Relative Clauses ]
when is used to substitute
A. place
B. time
C. things
D. people

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Phrasal verbs and Prepositional Phrases › Viewknow sth by watching the news
A. hang up
B. on the news
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Have you ever heard the history of vaccines?
- abstract noun
- concrete noun
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I …………….. at 4 p m
A. read books
B. do homework
C. surf the internet
Vocabulary › View
Mozart’s opera ______ from the Seraglio is about an attempted kidnapping that takes place in a Turkish sultan’s palace.
A. Abduction
B. Intervention
C. Transmission
D. Plight