[ Present Perfect Continuous Tense ]
How long … properly in the gym?
- has he been working out
- have he been working out

Random Topics:
Adjectives or AdverbsPrepositional PhraseActive vs. Passive VoiceComparative and Superlative AdjectivesParts of Speech and GrammarAdverb & Compound SentencesProgressive Perfect and Simple Verb TensesTenses - Pasive VoicePassive Voice Present SimpleDependent ClausesOther quiz:
Grammar › Viewprejudice in favor of or against one thing, person, or group compared with another, usually in a way considered to be unfair
A. argument
B. bias
C. debate
D. jargon
Subject Verb Agreement › View
The new shoes (fit/fits) perfectly.
A. fits
B. fitted
C. fit
D. fitteds
Past Simple Tense › ViewTeresa Teng _____ a Taiwanese singer. She _____ from 1953 to 1995.
A. is … lives
B. was … is living
C. was lived
D. is lived
Conditional Sentence Type 1 › View
If he … the book, I will borrow it in my university library.
- hasn’t
- doesn’t have
