(2013·浙江金华二模)A survey has shown that 40% of those kill..
(2013·浙江金华二模)A survey has shown that 40% of those killed in traffic accidents ________ if they had been wearing seat belts.A.should have been savedB.must have been savedC.need have been savedD.could have been saved
—Look,I’ve bought some bread,including your favorite flav..
—Look,I’ve bought some bread,including your favorite flavor.—You ________ any because we still have plenty at home.A.should have boughtB.could have boughtC.needn’t have boughtD.mustn’t have bought