[ Tenses ]
The station ____ trains every morning at 6 AM sharp.
A. serves
B. served
C. is serving
D. will serve

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Grammar › View. My house is _______ than yours.
A. big
B. bigger
C. biggest
D. most big
Conjunction › View
You … come with us or I will punish you.
A. either
B. not only
C. both
D. neither