[ Tenses ]
Which of these sentences is in the present perfect continuous tense?
A. I have studied for two hours.
B. I have been studying for two hours.
C. I will study for two hours.
D. I studied for two hours yesterday.

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Interrogative PronounsPersonal PronounsModals with Perfect InfinitiveModifiersVerb Patterns / Inglike/do not likeAdverbs and Adverbial PhrasesPreposition after some VerbsConditionals / Unreal PastFirst ConditionalOther quiz:
Vocabulary › ViewShe often complains that he is ____________.
A. dishonest
B. daily
C. crowded
D. considerate
Grammar › View
Peter likes to surprise _______.
A. we
B. us