[ Grammar ]
Choose the correct verb form to make a sentence in present perfect.
They ______________ this before.
A. do
B. has done
C. done
D. have done
Select your answer:
Random Topics:
Vocabulary and UsageMorphology and GrammarAdverbs of frequencyAdjective ClausePerfect TenseComparative and SuperlativesGrammar - Reflexive PronounsNoun, Adjective, and Adverb ClausesNoun and PronounIndefinite and Definite ArticlesOther quiz:
Grammar › View_____ John like pizza? – Yes, he ____
A. Does – do
B. Does – does
C. Did – did
Conjunctions › View
I feel tired, _____I feel weak.
A. and
B. so
C. but
D. for