[ Grammar ]
We _____ from the other group for over an hour. We are worried.
A. did not hear
B. are not hearing
C. do not hear
D. have not heard

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Mixed Tenses › ViewIdentify the correct verb tense in the following sentence: They (study) for the exam when the power went out.
A. studied
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C. studies
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. Which word means “correct for the situation”?
A. discuss
B. identify
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The problem is I will ……..another day to revise grammar.
A. needs
B. to need
C. need
