[ Past Tenses ]
He ___ in the library all day yesterday.
A. studied
B. was studying
C. had studied
D. had been studying

Random Topics:
Subject Verb Agreement and TensesTenses - AuxiliariesPresent / Future / Present Progressive / non Action VerbsCompound AdjectivesIdentify The TensesSynonymsThird ConditionalsComparatives, Superlatives & EquativesPresent Perfect Simple and ContinuousReporting VerbsOther quiz:
Tenses › ViewI _____ a letter to my sister.
A. write
B. am writing
C. writing
Vocabulary › View
having the nerve to act in a certain way
A. self-deprecating
B. consoling
C. galling
Modals Verbs › ViewMy watch_______be broken
A. Must
B. Shall
C. Could
D. Ought to
Grammar › View
A whale is ________ a dolphin.
A. big
B. bigger than
C. the biggest
