[ Grammar and Vocabulary ]
John climbed up a _______________ of stairs as the lift was not working.
A. flight
B. stack
C. bunch
D. cluster

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Abstract Nouns › Viewopposite of confidence
A. nervousness
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The hotel ended the party after it turned into a noisy _______.
A. bacchanal
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a. after
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She ___ ____ waiting for a long time.
A. has been
B. has is
C. have be
D. have is
