Topics: Modal Verbs
The kitchen looks clean. Someone ___ have cleaned it recently.
A. could
B. must
C. must not
Select your answer:
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General Quiz › ViewChoose the correct alternative:
You _____ at the station at five if you don’t want to miss the train.
A. should be
B. shouldn’t be
Subject Verb Agreement › View
. A number of people (was / were) protesting in the street.
A. was
B. were