[ Grammar ]
My scores in English Grammar class _________ ________ ___________ until I made an effort to study more.
A. couldn’t be improved
B. hadn’t been improving
C. haven’t been improving
D. wouldn’t have improved

Random Topics:
Grammar - SimilesComparatives ( adj/ adv)Modal AuxiliariesCountable Vs Uncountable NounsAuxiliary WordsGrammar Present Perfect (ever never)Tenses and FoodFuture - will / going to / present continuousSubordinating ConjunctionHow much and how manyOther quiz:
Future Tenses › ViewLook at the dark clouds. I think it ____________ .
A. is going to rain
B. will rain
C. is raining.
Subject-Verb Agreement › View
He is tired because he had been ____ (sing) for hours.
A. Sings
B. Sang
C. Sing
D. Singing
You_______ stay here?
A. Can
B. Might
C. Will
D. Would
Tenses › View
The stadium ____ for a big concert tonight.
A. is preparing
B. prepares
C. preparing
D. prepare
