[ 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:
General Quiz › ViewWhat _____ I _____ to the party tonight?
A. should – wear
B. should – go
Future Perfect vs Future Continuous › View
Don’t phone me before 8 o’clock, we _______ (have) dinner.
A. ‘ll have had
B. ‘ll be having
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
