Millie spoke in a very low voice, but I ______ understand what she said.
A.could B.might C.can
—I wonder ______. —I am not sure yet.
A.which is hers B.which hers is C.weather is it hers
—Are you a basketball player in your school?
—Yes, I _______ the team three year ago, I ______ in it for three years.
A.joined; was B.have joined; have been C.joined; have been
_____ Wugang Airport_____ last year?
A. Did; build B. Had; built C. Was; built
—Listen! Someone is playing _________ violin.
—Wow! _______ beautiful music! I like it very much.
A.the; What B./; How C.a; What
-Sally, I heard you're going to America. will you stay there?
-Two whole years
A.How soon B.How often C.How long
