-1. Up and down 2. Third from the left. Right 4. leave out

2. 1. Up and down 2.

Three, 1. Before and after 2. The third one on the right. Left and right

Fourth, the number on the left hand is (346), and the number on the right hand is (125). Five, five, three, two, six, explore and expand the ability to strengthen training and develop comprehensive application ability. There is a TV on the TV cabinet and a TV under the vase.

There is a video recorder under the TV cabinet, and there is a TV on the video recorder.

(1) Xiaoli is the fourth one in front. How many people are in front of her? Xiao Qiang is the third from the bottom. How many people are behind him? (3) How many students didn't see it? (4) How many students are there in this team? (5) What are the numbers of Xiao Li behind and Xiao Qiang in front?

4. first place: b second place: d third place: c

Fourth place: fifth place: e