[ Verb Tenses ]
How long _____ online videos about solar power?
A. are you watching
B. do you watch
C. have you been watching
D. have you watched
Select your answer:
Random Topics:
Too or EnoughGrammar (either..or.. and neither..nor..)Kinds of NounsConjunction and PunctuationPast Tense (Regular and Irregular)Modal Verbs for SpeculationSports VocabularyGrammar - Sentence StructureModals and PrepositionCity PlacesOther quiz:
Preposition › ViewA man _________ long hair was sitting ________ a man who was bald.
A. with, beside
B. without, across
C. in, on
D. with, under
Present Tenses › View
They … building that stadium yet.
A. don`t finish
B. aren`t finishing
C. haven`t finished
D. haven`t been finishing