I/ Chọn đáp án đúng 1. We have posters ... the walls. A. On B. Above C. Under 2. ... the teacher’s desk is a clock. A. Opposite B. Above C. Next to 3. There’s a wastepaper basket ... her desk A. On B. Under C. Between 4. Joe and Alan sit ... each other A. Between B. Beside C. Next 5.We had sandwiches ... a pretty fountain A. By B. On C. In 6. You need to walk ... this road quickly. A. Across B. By C. On II/ Điền must hoặc have to 1, He ... clean the classroom because he had been throwing papers on the ground. 2, You ... help me, said the mysterious woman to the detective. 3, The rules ... be obeyed at all times! shouted the headmaster. 4, I ... go. Otherwise I’ll miss my train. 5, I ... be home at one o’clock. Otherwise, my mother will kill me.