[ Grammar ]
School students ________ wear uniform to school.
A. should
B. must
C. need to
D. must not
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Grammar Comma Usage › View. Which sentence correctly uses commas in a list?
A. Clams shrimp and crabs all live on the seafloor.
B. My list of nightly chores includes washing the dishes cleaning my room and doing my homework.
C. Clams, shrimp, and crabs, all live on the seafloor.
D. My list of nightly chores includes washing the dishes, cleaning my room, and doing my homework.
Gerunds and Infinitives › View
__________ English can be difficult, but you can do it!
A. Learn
B. To learn
C. Learning
D. Learned
Grammar › ViewWhich modal expresses moral duty?
A. Ought to
B. Should
Grammar › View
What are ______ surnames?
A. they
B. their
C. theirs