[ Grammar ]
We ________ our teeth after breakfast.
A. clean
B. are clean
C. cleans

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Adjectives & PrepositionIndefinite PronounsPresent PerfectPast and Present TensesPerfect and Past Tense-ed and -ing AdjectivesPossessive Pronouns and Adjective PronounsAdjective ClauseV-ing/to-VArticles and QuantifiersOther quiz:
Parts of Speech and Compound Sentences › ViewYou can repeat the experiment “if” you have the equipment.
A. conjunction
B. adjective
C. pronoun
D. preposition
Grammar › View
___________ desk
A. a
B. an
Analogy › Viewlocker: storage :: __________________
A. telephone: communication
B. wallet: cash
C. pencil: paper
D. lake: moisture
Prepositions › View
I looked this word ____ in the dictionary, but I still don’t understand it.
A. from
B. on
C. up
D. over