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US College Students' Inventions Help Developing Countries Many small-scale farmers in East Africa find it hard to grow crops year-round because of drought or too much rain. So a student team from Pennsylvania State University came up with the idea of
DIALOG 21 laurance--You look happy today! soony--I am happy.I just heard I passed my physics exam laurance--Congratulations!I'm glad somebody's happy. soony--Why?What's the matter? laurance--Oh,I'm ju
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Hoppy the little kangaroo was out for a walk with his mother.Mummy,I'm cold,he said suddenly.Then you must jump into my pouch at once,said his mother.Where is Hoppy?asked everyone when they got back home.He felt cold.He's gone insid