[ Modals ]
Sorry, Teacher. I ____________ do it yet.
A. couldn’t
B. haven’t been able to
C. wasn’t able to

Random Topics:
Definite, Indefinite and Zero ArticlesSentence Structure and Pronoun AntecedentReflexive pronounsGrammar - either...or, neither...norGerundsTenses and Passive VoiceConditional Sentences Type 1Can vs be able toModals of Speculation and DeductionCommon & Proper NounsOther quiz:
Grammar › ViewJulia started to play ________ when she was fifteen.
A. a tennis
B. the tennis
C. –
D. tennis
Future Perfect Continuous › View
As of tomorrow, we ____ (be) here for one month.
A. will have been
B. will not have been
C. will had been
Vocabulary and Grammar › ViewPeople make plastic from plant now.
A. TRUE
B. FALSE
Subordinating Conjunction › View
___ you study hard, you will pass the exam.
A. Because
B. If
C. Until
D. When