[ Grammar Comma Usage ]
. Where should commas be added in the sentence: “I went to the store to buy a bag of chips a can of soda and a box of Twinkies”?
A. After “chips” and “soda”
B. After “store” and “buy”
C. After “bag” and “box”
D. After “store” and “Twinkies”

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Tenses › ViewWhich sentence is not future perfect continuous tense ?
A. By eight o’clock I will have been waiting for you for two hours.
B. By nightfall I will have been working for six hours without a rest.
C. By 2015 we’ll have been living in Bangkok for ten years.
D. They will have eaten by then.
Grammar › View
When I went to bed last night, my dog __________ (eat) all its food.
A. had eat
B. had ate
C. had eaten
D. eats