[ Mixed Tenses ]
When I _______ to the airport, I realized that I _______ my passport at home.
A. got/had left
B. got/left

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Mixed General Quiz › ViewThe magnificent mansions on Avenid Paulista were later replaced by skyscrapers that ___ international banks, consulates, restaurants, art galleries, bookstores, etc.
a. houses
b. housed
c. house
d. was housed
Vocabulary › View
We’ve never seen such a rapid increase in deaths. It’s ________.
A. unprecedented
B. unknown
C. prime
D. proficient