[ Present Perfect Tenses ]
They ______ their project for three months.
A. have been working on
B. work on
C. worked on
D. are working on

Random Topics:
Present ContinuousLinking VerbRelative Clauses PronounsCollective NounsNoun PhraseSimple Future - Passivewas wereAdjectives and DegreesPast Continuous Tense & Past ModalsSubject, Object, Possessive Pronoun and Possessive AdjectivesOther quiz:
Subject Verb Agreement › ViewThe poet and statesman ……………come
A. has
B. have
Vocabulary › View
…………………… of crops like wheat usually takes place at the end of the summer.
A. Intervention
B. Growing
C. Harvesting
Grammar › ViewIt_____pretty.
A. is
B. are
C. am
Phrasal Verb › View
It’s very difficult to break ……. with someone who you still love.
A. in
B. up
C. down
D. out
