--- I have worked harder than before, but I still didn't get good grades in math. --- Don't worry. .
This is _______ MP4. Yours is over there.
Many accidents ______ by careless drivers last year.
I will send you an e-mail as soon as I ______ in Canada.
--- What were you doing this time yesterday? --- I ______ on the grass and drawing a picture.
My aunt is a writer. She ______ more than ten books since 1980.