[ Present Tense ]
the Post Office …. on Saturday and Sunday.
A. are not open
B. is not opening
C. do not open
D. does not open

Random Topics:
Similes-ed and -ing AdjectivesSecond Type ConditionalAbstract NounsComparatives - SuperlativeSimple Past/Past ProgressivePresent Tense vs Present ContinuousPreposition and AdjectiveIndefinite ArticleGrammar for TOEFLOther quiz:
Grammar › ViewChoose the common noun
A. computer
B. Ana
C. Tabatha
D. Cancun
Family Members and Present Simple › View
We ____ (not/live) in the city.
A. live
B. don´t live
C. lives
D. doesn’t live