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:
Grammar and Vocabulary › ViewComplete the sentence:
My passport ___ be in at home. I’ve already looked inside my bag three times.
A. must
B. may
C. can’t
Grammar › View
“The fireman grabbed the hose from the side of the fire truck.”
Which of the words in this sentence is a verb?
A. fireman
B. grabbed
C. side
D. hose
Mineral 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
