[ 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:
Present Simple Tense › ViewHe _________(go) to school every day.
A. goes
B. go
C. went
D. gos
Vocabulary › View
showing irritation or ill humor by a gloomy silence or reserve
A. divert
B. bewilderment
C. delinquent
D. sullenly
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
