[ Grammar ]
The thief …………….. to escape by the back door because it was locked.
A. able
B. was able
C. was unable
D. could able

Random Topics:
Pronouns, Sentence Structure, and Figurative LanguageGrammar : Must (Necessity)Independent ClausesPhrasal Verbs and Verb FormsAdjectivePast Tense & Past Continuous TenseFormal & Informal WordsQuestion TagFinite and Non-Finite VerbDefinite and Zero ArticleOther quiz:
Present Tense › ViewI really likes strawberry, but my sister …….
A. don’t
B. aren’t
C. isn’t
D. doesn’t
Past Perfect or Past Perfect Continuous › View
When they received the message, they ________ for half an hour.
A. had been studying
B. had studied
C. had study
Phrasal Verbs › ViewYou’d better …..your English skills if you want to have a better job.
A. be taken aback
B. brush up on
C. look forward to
D. put forward
Modals › View
You … keep an open mind. Otherwise the discussion will be pointless.
A. ought to
B. shouldn’t
C. may
D. needn’t