[ Subject and Verb Agreement ]
With the intake stroke, the piston is moving downward. That _______ the gasoline and air to move into the engine as the arrow shows.
A. allow
B. allows
Random Topics:
Have to / Do not have toAdjectives & AdverbsConjunction: Because and SoQuantifiers & Modal VerbsConditional Sentence Type 2 and Type 3so vs suchCorrelative Conjunction & Complex SentencesGrammar (Possessive Pronouns)Prepositions of Time & PlaceFuture Perfect vs Future ContinuousOther quiz:
Modals › ViewDon’t worry, you _____ pay now. You can pay later.
A. don’t have to
B. could not
C. mustn’t
Grammar › View
David asked Timmy why _________ the film on television the day before.
A. didn’t he watch
B. hadn’t he watched
C. he doesn’t watch
D. he hadn’t watched
Grammar › Viewa summary or abstract of a text or speech
A. prècis
B. paraphrase
C. afterthought
D. argument
Tenses › View
They ____ play football tomorrow afternoon.
A. is
B. are
C. will
D. was