[ Grammar ]
When Miss Wang walked into the classroom in the morning, all the students _____ the classroom at that time.
A. clean
B. cleaned
C. is cleaning
D. were cleaning
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Tenses and Verbs › ViewFill in the blanks with am, is, are (present tense) and was, were (past tense) The boys ___ talking.
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A. mother
B. eyes
C. father
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