[ Perfect Tenses ]
My back hurts because I … here for three hours.
A. was standing
B. have stood
C. have been standing
D. had been standing

Random Topics:
Relative Clauses and etcPersonal PronounQuantifies and Modals of DeductionSimple PastVerb, Object, PrepositionSports VocabularyModal Verbs and Gender NounsGrammar Past and Future TenseGerundSuperlative AdjectivesOther quiz:
Grammar › ViewThings _____ so well since she ____ into my life in 1990
A. have been going / came
B. have been going / come
C. have been going / have been coming
D. have gone / come
Grammar › View
How long____?
A. is the baby sleeping
B. has the baby been sleeping
Grammar › ViewIdentify the adjective in the sentence:
The ball is so big.
A. ball
B. is
C. big
Plural › View
What’s the plural of wolf?
A. Wolfs
B. Wolfes
C. Wolves
