[ Tenses ]
. Formulate past continuous tense: He (to read) a book when I called.
A. He is reading a book when I called.
B. He was read a book when I called.
C. He was reading a book when I called.
D. He read a book when I called.

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Unreal Conditionals › ViewIf you had come to classes more often, you __________ better in the exams.
A. had done
B. did
C. would have done
D. will do
Past Perfect vs Past Simple › View
She ______ (to watch) a video after the children ______ (to go) to bed.
A. had watched, had gone
B. watched, had gone
C. watched, went
D. had watched, went