[ Verb Tenses ]
_____ with Dr. Browne since your project in 2018?
A. Do you collaborate
B. Had you collaborated
C. Have you collaborated
D. Are you collaborating
Random Topics:
Verbs and PrepositionsConjunctive AdverbsComplex Sentences with Adverb ClausesConjunctions, Interjections and DeterminersGrammar, adverbs of frequency placementPresent Progressive (Future)Verb FormComparatives, Superlatives & EquativesBasic GrammarTOEIC Grammar and Vocabulary ReviewOther quiz:
Grammar › ViewI am going to ____ down.
A. lie
B. lay
Present Tenses › View
Dan, …..hockey competitively or just for fun?
A. do you usually play
B. are you usually playing
C. have you usually played
D. have you usually been playing
Present Perfect vs Past Simple › ViewI haven’t seen my parents _____ last Christmas.
A. already
B. before
C. for
D. since
Prepositions › View
The children walked __ the park to get home quickly.
A. For
B. Through
C. By