2avoid是及物动词,可接名词、代词或动名词作宾语,不接动词不定式,可用于被动结构。You had better avoid reading in the train.句中的reading不可改成to read。
八年级下册英语:期中必背知识清单。Unit 1 What's the matter?1.提问“你怎么了?”What's the matter with you?What's wrong with you?What's the trouble/problem with you?what's your trouble?what's up?