Đặt câu hỏi cho phần gạch chân: 1. Mrs.Robinson buys a poster ( phần gạch chân : Mrs.Robinson ) 2 The lesson is very difficult ( phần gạch chân: very difficult ) 3 They are planting some roses in the garden ( phần gạch chân: in the garden ) 4 Liz will send these letters to her friends ( phần gạch chân: these letters ) 5 He is good at drawing ( phần gạch chân: drawing ) 6 She learns about computers in computer science class ( phần gạch chân: computers ) 7 My mother is cooking in the kitchen at the moment ( phần gạch chân: is cooking ) 8 The children swim in the lake ( phần gạch chân: The children ) 9 She leaves her suitcase on the train ( phần gạch chân: on the train ) 10 They see lions and tigers at the zoo ( phần gạch chân: lions and tigers ) 11 He leaves the party at 11 o'clock ( phần gạch chân: at 11 o'clock )