[ Grammar ]
Omar ___________ (to do) his homework for 1 hour.
A. have been doing
B. has been doing
C. has being doing
D. have being doing

Random Topics:
Vocabulary and PrepositionsAdverb of Frequency and Past Continuous TensePassive to ActiveConditionals / Unreal PastModal Verbs and Contrastive ConjunctionsClauses and ConjunctionsContrastive ConjunctionsTenses StructureAuxiliary Verbs & Question TagsModals and AdviceOther quiz:
Vocabulary › Viewa moment of sudden insight or revelation that a character experiences
A. epiphany
B. pastoral
C. soliloquy
D. oxymoron
Grammar › View
What is the kind of adverb in this sentence.
They walked slowly along the street.
_
A. how
B. where
C. when
Articles › View_______ black car and _______ red motorcycle both belong to the gentleman who lives across the street.
A. a, a
B. the, a
C. a, the
D. the, the
V-ing/to-V › View
This website will help you ______ English better.
A. learn
B. learning
C. learnt
