[ Tenses ]
I have been working on this task since morning.
A. Present Perfect Continues
B. Past Perfect Continues
C. Future Perfect Continues
D. Simple Future

Random Topics:
Complex Sentences with Adverb ClausesNoun Verb AgreementVerb + PrepositionPassive Voice Active VoiceGerund/ To Verb/ VerbFormal & Informal WordsConjunctive AdverbsPresent Tense vs Past TensePresent Simple and Present Continuous TensesVerb AgreementOther quiz:
Subject Verb Agreement › ViewMy dad’s boss __________ him to work one Saturday a month.
A. require
B. requires
Phrasal Verb › View
Zhi Ning ___singing even after the music had stopped.
A. keep on
B. keep in
C. keep up
D. keep out
Used to - Would - Tenses › ViewI ……………….. to live alone.
A. used
B. was used
C. got used
Some vs. Any › View
Pam hasn’t got ___ children.
a. any
b. some
