[ Present Perfect Tense ]
They________________(not/buy) a Computer.
A. hasn’t buy
B. hasn’t bought
C. haven’t buy
D. haven’t bought

Random Topics:
Parts of Speech and Compound SentencesQuantifiers and ArticlesGrammar and PunctuationVerb + Infinitive or GerundPresent Simple and ContinuousSubject Verb Agreement Irregular VerbModal Verbs and Contrastive ConjunctionsConjunctive Adverbs and PunctuationModals and Adjectives (ed-ing)Simple vs Continuous Past TenseOther quiz:
Quantifiers / Prepositions of Time and Comparative Adjectives › ViewThis is ______ than I expected.
A. easier
B. easy
C. most easy
D. easyer
Vocabulary › View
To expand or elaborate on an idea, theme, or concept in a text.
A. Develop
B. Analyze
C. Cite
D. Evaluate
Simple Present and Simple Past › ViewMy parents …………. angry last night because I ………….. late.
A. were – were
B. was – was
C. was – were
D. were – was
Many vs. Much › View
How ___ people live in Los Angeles?
A. A lot of
B. Much
C. Many