[ Subject and Verb Agreement ]
The camshaft _____ a fuel intake valve allowing fuel and air to enter the cylinder via an intake port.
A. open
B. opens
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Grammar and Vocabulary › View. He never lies. He is very _______.
A. dishonest
B. funny
C. lazy
D. honest
Vocabulary › View
……………….. wisdom says that most people will get married and have children.
A. Conservation
B. Conventional
C. Conventing
Tenses › ViewAt last the bus came. We ____________ for half an hour.
A. waited
B. was waiting
C. have waited
D. had been waiting
Grammar › View
There was no _________ that he had committed the crime.
A. prove
B. proof
C. proofs