十里画廊74 be worth doing 值得做什么
75 be(feel) afraid to do sth 害怕做某事be afraid of sth 害怕某物 be afraid that 丛句
76 because+句子 because of +短语
eg : He was late because he had a headache He was late because of his headache
77 begin to do = start to do 开始做某事 start…with…=begin…with… 以什么开始什么
