By the time Robert finally graduated from high school, he …………….. seven different schools because his parents moved frequently.
A. attended
B. was attending
C. had attended
D. had been attending

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Mixed Conditionallike/do not likePronouns and AdverbsPassive Modals in Different TensesQuantifierAdverb of MannersVerbal CommunicationReported Speech and TensesFormal & Informal WordsPrepositions after Verbs and AdjectiveOther quiz:
Grammar › View. Choose the sentence with correct modifier placement.
A. She almost drove her kids to school every day.
B. She drove her kids almost to school every day.
C. She drove almost her kids to school every day.
D. She drove her kids to school almost every day.
Grammar › View
For this reason she had always dreamed about ______ the house.
A. visit
B. to visit
C. visiting
Grammar › ViewWhat______you (do) ________ tonight?
A. does/doing
B. do/doing
C. is/doing
D. are/doing
Finite and Non-Finite Verb › View
Crying will not get you anywhere.
The underlined word in the above sentence is a _________
A. present participle
B. past participle
C. to infinitive
D. gerund