—_______ I return your English book?—No, you _______.A. Must; mustn’tB. Could; can’tC. Must; needn’t
—What about_______ a rest? —OK! Let’s go for a walk.
My grandfather _______ ten years ago.
My dad ________ a teacher when I grow up.
—How often do you drink milk? —I don’t like it, so I _____drink it.
_____ it was very cold, _____ my friend still went swimming in Jialing River this morning.