A. kind B. friendly C. steady D. nasty
A. Frederick Lewis Donaldson. B. Helen Keller C. Stephen William Hawking D. Albert Einstein
A. 6 B. 5 C. 4 D. 3
A. so that B. such as C. such that D. so
A. give information about a topic B. explain ideas C. give directions D. show how to do something