[ Modals ]
If you don’t have to do something, then it is…
A. necessary
B. optional
C. unnecessary
D. obligatory
Select your answer:

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Grammar › ViewIt’s now 4:40 p.m. The library usually ________________ at 5:00 p.m.
A. close
B. closed
C. closes
D. closing
Comparative Adjective › View
Most people think cats are … … … fish.
A. more interesting
B. interesting than
C. interesting
D. more interesting than
