22.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.
I’d like a roomwindows look out over the sea.
It was from my best friend Jane ________ I learned the truth.
They showed great interest in everything they sawthey visited the farm.
Can you believe that ina rich country there should bemany poor people?
Some students have troublegrammar while others have difficultynew words.