[ Passive Voice ]
Thousands of customers ______ about their phone service by filling out questionaires online.
A. were surveyed
B. were surveying
C. had surveyed
D. had been surveying

Random Topics:
Present Continuous, Present Perfect and Used toSentence Structure and PunctuationFirst ConditionalsPossessive NounsPast form of ModalsAuxiliary ModalAdverbs and Time ExpressionsSimilesComparatives, Superlatives, and ModalsAdverbs by TypeOther quiz:
Grammar › ViewHe _________________________ to Cape Town before 1997.
A. wasn’t been
B. has been
C. hadn’t been
D. hasn’t been
Dependent Preposition › View
The doctors had to operate ____ his knee after the injury.
A. on
B. at
C. in
D. for
Question Tags › ViewThey are coming late to the party,
A. Aren’t they?
B. Isn’t they?
C. Aren’t he?
D. Isn’t he?
Grammar › View
Sir Arthur Conan Doyle, who passed away many years ago, _________ Sherlock Holmes.
A. was creating
B. used to create
C. created
D. would create
