【正文】
. in, knowing B. about, to know C. that, to know D. about, knowing 4. It good manners others when they are in trouble. A. are, to help B. is, helping C. are, to help D. is, to help 5. Business letters must always be , but we should write in a natural way to friends. A. mon B. formal C. usual D. normal 6. How should I mark my answer ? Can I use a pencil or must I use a pen to write on it? A. sheet B. paper C. book D. note 7. It39。s a 10minute ride by car but a long wait for the bus, and it39。 無 be modest to / for 的結構。 give sb a lift 搭便車, give sb a ride 載乘某人, give sb help 幫助某人 requ