[ Past Tense vs Present Tense ]
The soldiers …….. (protect) the boarder everyday.
A. protect
B. protects
C. protecting
D. protected

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Simple vs Continuous Past TensePresent Simple and Modal VerbsPast Tense and Past ContinuousPerfect ModalsDefinite & Indefinite Pronoun & ConditionalsVocabulary : Coming & GoingGerund & ParticipleVerb Types and TensesModal Verbs & Time PrepositionsGrammar and PrepositionsOther quiz:
Grammar › Viewthe number of people who go to an event
A. individual
B. private
C. attendance
D. encourage
Grammar › View
Bears are ……… than wolves.
A. heaviest
B. heavier
C. heavy
D. more heavy
Grammar › ViewThe elephant is ……… than the hippo
A. the bigger
B. big
C. biggest
D. bigger
Grammar › View
My father …. a pilot.
A. were
B. are
C. is
D. am
