[ Grammar ]
Choose the correct word or word pair that completes the sentence.
I ________________ called the airport earlier.
_____
A. could have
B. could of

Random Topics:
Simple TensesGrammar : can, could and be able toPassive Voice, Question Tag, PrepositionsIF CLAUSEPast Simple, Present Perfect TenseSimple Past TensesUnless If First ConditionalOffering HelpGrammar ( going to)Modal VerbsOther quiz:
Modal Verb › ViewSophia, Evelyn, and Arjun ________ win the game if they practice hard.
A. should
B. won’t
C. can
D. do
Tenses › View
I eat lunch ______ school every day.
A. once
B. now
C. twice
D. at
Grammar › ViewIt _______________ that the company is planning a new advertising company.
A. is thought
B. is been thinking
C. will be thought
D. would be thought
Gerunds and Infinitives › View
Jennifer has helped her mom _____________ the holiday trip of the family many times
A. to plan
B. planning
