[ Modals "Should" ]
I … (treat) her better when she was still by my side.
A. Should treat
B. Should treated
C. Should have treated
D. Should have treat

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Grammar › View________ animal
A. a
B. an
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He is devoted to _________ at the local orphanage, helping to improve the lives of disadvantaged children.
A. volunteer
B. volunteering
C. to volunteer
