[ Verb Tenses ]
Identify the tense of the verb in the sentence: ‘They have been studying for hours.’
A. Future perfect tense
B. Past continuous tense
C. Present simple tense
D. Present perfect continuous tense

Random Topics:
Preposition and Word FormGrammar - may & mightSentence Types and ConjunctionsDegrees of ComparisonPast Perfect & Past SimplePast Simple & Past PerfectIF CLAUSEGerunds as Objects of PrepositionsModals for DeductionAdverbial ClausesOther quiz:
Modals Tenses › ViewWe should …. do what we want.
A. be able to
B. can
C. should
D. manage to
E. ought to
Passive Voice › View
She _______ of the accident yet.
A. hasn’t informed
B. hasn’t been informed
C. hasn’t being informed
D. wasn’t been informed
Grammar › ViewA: _____________ is from Taipei to Kaohsiung?
B: It is 186 km.
A. How often
B. How far
C. How long
D. How many
Grammar › View
Determine whether each sentence uses punctuation correctly.
“Well, I’m not quite sure—” Jackson muttered.
A. Correct
B. Incorrect
