单项选择题
A.Susan is a fast worker. B.Susan did Jack’s homework. C.Susan didn’t do the homework on her own. D.Susan has not finished her homework.
A.It must be trained so it won’t bite. B.It needs more love and care. C.It demands more food and space. D.It must be looked after carefully.
A.They often go for walks at a leisurely pace. B.They usually have a specific purpose in mind. C.They like the seaside more than the countryside. D.They seldom plan their leisure activities in advance.