Here ____ the professor and writer as well as his friends.
—Are you sure that you are satisfied with this job?—Yes.Nothing can be better.
—Daniel must have lost his job in that unemployment crisis, he?—I don’t think so. Yesterday I saw him working together with his colleagues.
—When did you staying up so late?—When I entered this school two years ago, where students have too much homework to do.
If Sanlu Group melamine to the milk,the babies too much from kidney stone.
Lawrence Craven,a doctor from the USA,is the author of several published reports,one of ________introduced the idea in 1953 aspirin could reduce the risk of heart attacks.