[ Grammar ]
I __________________ how to do this exercise.
A. don’t know
B. am not knowing

Random Topics:
So / Neither / Either / TooFew, a few, little, a littleCan, Could, May, MightModal Verbs & Perfect InfinitiveTenses & PrepositionPossessive Pronouns and QuantifiersPresent Perfect Simple and ContinuousPassive with ModalsPronoun-Verb AgreementAdverbs of Time and PlaceOther quiz:
Verb Patterns › ViewI really hate _________ football on TV
A. watching
B. to watch
C. watch
Vocabulary › View
__________ is a pattern of stressed/unstressed syllables in poetry.
A. Meter
B. Meter stick
C. Onomatopoeia
D. Allusion