[ Grammar ]
Be quiet! Someone ______ at the front door. I ______ it.
A. is knocking/ will answer
B. knocks / am answering
C. has knocked / am going to answer
D. will knock / have answered

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A. has finished studying
B. studied
C. is still studying
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Grammar › View
He was caught by the teacher for cheating ________ the exam.
A. During
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C. were watching
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The jug is ……………. stainless steel.
A. made
B. made of
C. making of