[ Present Perfect Negative and Interrogative ]
Tom / sing / karaoke.
A. Have Tom ever sung karaoke?
B. Has Tom ever sung karaoke?
C. Has Tom ever sang karaoke?

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Synonyms and VocabularyGrammar (Adverbs, Prepositions, Prepositional Phrases)Argumentative VocabularyPresent Tenses and ConnectorsGrammar on ConditionalsModals and AdvicePresent, Past, and Future TimePronounsPassive Voice in Past and Present TenseInfinitive and GerundOther quiz:
Grammar › ViewMarliet marketing can help any business … its products through media advertising packages.
A. promote
B. promoted
C. promotable
D. promoter
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In some cases, the skin —– carefully removed to prevent damage if the tissue——
A. would be/ is hardened
B. could be/ has been hardened
C. must be/ is hardened
D. ought to be/ are hardened
E. must have been / have been hardened
Phrasal Verb › ViewShe decided to ________ painting as a hobby after retiring.
A. make up
B. look up
C. take up
D. break up
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My best friend…….four languages.
A. speaks
B. speakes
C. goes
D. go
