[ 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

Random Topics:
Verb & GrammarFirst ConditionalRegular and Irregular VerbsAuxiliary and Modal VerbsPassive Modals, Impersonal PassiveMust / must notConjunctions and PrepositionsModal Verbs and Gender NounsPast Tense and Perfect TensePresent Simple and ContinuousOther quiz:
Continuous Tense › ViewWhen Tono ….. Ali, he was riding a bike.
A. was meeting
B. has met
C. meets
D. met
Irregular Adjectives › View
Fill in the blank with the correct adjective form:
Lily is intelligent. Colleen is _______ intelligent. Eliana is the most intelligent.
A. intelligentest
B. more
C. intelligenter
D. most
Grammar › ViewThe word “Tackled” in this sentence is a
A. adjective
B. adverb
C. verb
D. preposition
Grammar › View
I use my pen to_____.
A. write
B. drink
C. shower
D. walk