Đề bài : Fill in each blank with on suitable preposition ----- Nội dung dịch tự động từ ảnh ----- 47- She apologized............... me ....... .................keeping me waiting. 48- The headmaster disapproved .................... his behavior. 49- My boss was angry.....................me when I arrived late. 50- Tam has given ................. his habit............playing truant. 51- This expression is used only ................... speaking.