[ Past Perfect and Past Perfect Continuous Tense ]
Mary ________ sad because I _________________ her birthday.
A. was…have forgotten
B. had been…forgot
C. was…had forgotten

Random Topics:
Grammar PhrasesClause Markers TOEFL GrammarVerb BETransition WordsTenseIntensifiers: Really vs VeryAdverbs of Manner, Likes and PreferencesIF CLAUSEAdverbial ClauseVerbs and TensesOther quiz:
Tenses › ViewThe man is speaking English very fluently. The part of speech of the underlined word is _____.
A. a verb
B. an adjective
C. a noun
D. an adverb
Grammar › View
I wish ____ I to your graduation party last Saturday.
A. will come
B. have come
C. had come
D. would come
Mixed General Quiz › ViewHe was a ___ enough fellow even if he was not wealthy.
a. decent
b. descent
c. dissent
Grammar › View
I’ve never ____________ to the USA.
A. gone
B. being
C. going
D. been
