[ 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 › ViewExcuse me? _______ Our luggage hasn’t arrived.
A. Don’t worry.
B. Is something wrong?
C. I wonder if you could help us.
Modal Auxiliary › View
Which sentence has a modal verb showing permission?
A. He can paint pretty pictures.
B. She may go to your house.
C. I will eat lunch with you.
D. You should finish your homework.
E. I’d better not leave my bag there
Grammar › ViewTrue or False: Who’s is a contraction of “Who” and “says.”
A. TRUE
B. FALSE
Grammar › View
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
