We have been working on this project for three weeks.
A. Present Perfect Simple
B. Past Perfect Simple
C. Future Perfect Simple
D. Present Perfect Continuous
E. Past Perfect Continuous

Random Topics:
Simple Present TenseVerbs and Possessive AdjectiveArticles and DemonstrativesPresent TenseNoun, Quantifiers and SuffixesPrepositions and ConjunctionsPast Continuous Tense & Past ModalsSentencesPrepositions and Adverbs“Put” Phrasal VerbOther quiz:
Tenses › ViewWhich sentence is grammartically correct?
A. I get up aways late.
B. I always get up late.
C. I get always up late.
D. I always get late up.
Grammar › View
Need to buy a present for a friend or relative? Just give us the details, and we’ll get one of our highly trained advisors _____.
A. your house cleaned
B. do the cooking
C. to find the perfect gift
D. deliver the ingredients
General Knowledge › ViewMineral that enables blood to carry oxygen.
A. Calcium
B. Potassium
C. Iron
D. Magnesium
Past Tenses › View
She _______ (studied/had studied) for two hours before she _______ (watched/had watched) her favorite show.
A. studied/had watched
B. had studied/watched
C. Studies/had watched
D. Studied/watched
