[ Grammar ]
Choose the correct alternative.
Anna _______ her homework when I called.
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A. did
B. was doing
C. does
D. were doing

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Vocabulary › ViewReplace the word in quotation marks.
Let me “show you”.
A. reveal
B. influence
C. demonstrate
Homophones › View
The (vile/vial) smell made me sick to my stomach.
A. Vile
B. Vial
The children … in small groups.
A. Are playing
B. Is playing
Grammar › View
How do you make this machine ________________? (WORK)
A. working
B. to work
C. work
