小题1:The laptop on the teacher’s desk is not yours. It b_____ to Harry.
小题2:While shopping, we always b______ with the shopkeeper in order to reduce the price.
小题3:The children waited until the policeman s_________ to them to cross the street.
小题4:I don’t know how to choose a mobile phone. Science and t________ is changing so fast!
小题5:I really a________________ it that you helped me so much when I was in need.
小题6:When people found the missing boy in the forest, they all smiled in r__________.
小题7:On hearing the funny story, the whole class burst into l___________________.
小题8:To be h______________, to start a business of my own is not as easy as I expected.
小题9:When I opened the letter, I found some photos a__________________ it.
小题10:The p_____ we saw last night was really wonderful. It was worth my time and effort.
缺失，余留牙正常。要求做整铸支架，
设计对半卡环，用前腭杆，后腭杆和侧腭杆连接。