The ancient vase, Tang Dynasty, is quite valuable. [ ]

In the English class, our teacher ______ a very good suggestion that each of us can write about a section of this topic.

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

think he is lazy” “I _____ so once, but I don’tnow”

Who cooks dinner in your home every day —- _________ .