[ Verb Tenses ]
The arsonist (set, sets, setted) fire to several houses in our neighborhood last year.
A. set
B. sets
C. setted

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Grammar › ViewTrue or False: Who’s is a contraction of “Who” and “says.”
A. TRUE
B. FALSE
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Identify the infinitive.
The air in Nam was always hard to breathe; it was heavier and thicker than the air back home.
A. in Nam
B. to breathe
C. heavier and thicker
D. back home