He pushed his way through the crowd, saying “_____”

I have an ______book. Let’s read(阅读) it now.

Was it through Mary , ____ was working at a high school , _____ you get to know Tom ?

_________ do you go to school every day —By bus.

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