[ 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 › ViewMark is … (tall) than Claire.
A. taller
B. tall
Grammar › View
Identify the sentence that uses correct hyphenation.
A. The teacher gave us a pre-test on the post-World War II period.
B. The teacher gave us a pretest on the post-World War II period.
C. The teacher gave us a pretest on the postWorld War II period.
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
