[ Idiom and Tenses ]
Determine the tense of the sentence: ‘They have been working on the project.’
A. Present Perfect Tense
B. Past Continuous Tense
C. Present Perfect Continuous Tense
D. Future Simple Tense

Random Topics:
Grammar and StructureRelative PronounAdverbs of TimeComparisonAdverb of MannerSimple Past/Past ProgressiveSentence Transformation-ing / InfinitiveGrammar Pronoun and Singular Plural NounVocabulary & GrammarOther quiz:
Grammar › ViewI ______ my key yesterday and I _______ found it yet.
A. have lost / didn’t
B. lost / haven’t
C. lost / didn’t
D. have lost / haven’t
Past Tense › View
Linda ___ for the exam so she was very nervous
A. hadn’t studies
B. hadn’t studied
C. wasn’t study
D. didn’t studied