[ Past Perfect and Past Perfect Continuous ]
Which of the following is a question with Past Perfect Continuous?
A. Are you studying Enin US?
B. Did you study English?
C. How long had you been studying English in US?
D. How long have you been studying English?

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Relative & ModalsArticles and NounsAdjectives, ING - EDPreposition after some VerbsConditional Sentences Type I, IIPast Simple (Questions)Vocabulary and PhrasesFamily VocabularyPrepositions and ArticlesSimple Past/Past ProgressiveOther quiz:
Grammar › ViewMy flatmate won’t ________ if you stay in her room while she’s away
A. matter
B. mind
C. not notice
Grammar › View
English Grammar. Select the best answer.
I have only a ________ Christmas cards left to write.
A. Few
B. Fewer
C. Less
D. Little