[ Grammar ]
PO box stands ………………. “Post Office” box.
A. as
B. like
C. for
D. by

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Modals and PhrasesSimple Verb TensesWas & Were QuestionsAdjective, Adverb, and Noun FormsModals of AdviceIdiom and TensesComparative Adjectives and AdverbsConjunctions and Sequence ConnectorsNoun ClauseGerund vs InfinitiveOther quiz:
Grammar › ViewThere aren’t _____ stairs.
A. any
B. some
C. one
Grammar › View
Correct the following text by inserting one comma.
Venomous creatures use their toxins as a weapon and poisonous creatures use theirs to defend themselves.
A. Place a comma after the word “Venomous.”
B. Place a comma after the word “weapon.”
C. Place a comma after the word “toxins.”
D. Place a comma after the word “theirs.”
Grammar › ViewI only have 1 …. for school.
A. bags
B. bages
C. bag
Grammar: Simple Past and Past Continuous › View
I _____ (swim) in the sea when it _____ (start) raining.
A. swam / started
B. was swimming / started
C. was swimming / was starting
D. swam / was starting
