[ Grammar ]
I _______ to Europe twice by the time I was 18.
A. have been
B. has been
C. had been
D. have being
Select your answer:

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InfinitiveSo / Neither / Either / TooVerbal TensesTenses PracticeGerund, Infinitive & ModalsNoun, Pronoun, Adjective, VerbPresent simple, Present continuous, Singular, PluralModals and Modal PerfectsGerund & InfinitiveConjunctions & Cohesive DevicesOther quiz:
Present/Future/Past Simple/Present Perfect › ViewKevin _______ at that high school from 1998 to 2001.
A. A. studies
B. B. has studied
C. C. was studied
D. D. studied
Grammar › View
A mountain is higher than the area around it.
A. Complex
B. Not Complex
