[ Modal Verbs ]
Olga has been sleeping for three hours. I think we ____ wake her up, or she _____ sleep at night.
A. were able to / may not
B. mustn’t / didn’t have to
C. ought to / couldn’t
D. should / won’t be able to

Random Topics:
Relative Clauses and etcVerb to beVerb Tenses and ModalsThings in EnglishTOEIC GrammarWill vs be going toTenses and VoicePast Simple TensesModals and Past ModalsPreposition FormOther quiz:
Verb Phrases › ViewWhat is the main verb?
We will have finished our time here at OPS.
A. We
B. will
C. have
D. finished
Grammar › View
Joan : “…………………, Erick!”
Erick : “Bye, Joan!”
___
A. Good afternoon
B. Goodbye
C. Good morning
D. Good night
Grammar › ViewThis week I __________________ for English exams.
A. revise
B. am revise
C. am revising
D. revising
Present Continuous Tense › View
My father…………..about the way I behave.
A. always complaining
B. always complains
C. are always complains
D. is always complaining
