[00:00.00] [00:00.00]Unit 7 Numbers [00:03.56]1.Magic Bag [00:06.81](Once there is a magic bag. [00:10.72] When we put one thing in it, it will bring out another nine same things.) [00:17.31]Hi, boy! What\'s this? [00:21.17]It\'s a schoolbag. [00:23.25]Look! How many schoolbags now? [00:27.23]Wow,ten schoolbags. [00:30.46]How many pens can you see? [00:33.63]Two. [00:34.73]Look! How many pens now? [00:38.60]Wow,twenty pens. [00:40.65](The boy wants to know what\'s in the bag. He climbs into the bag.) [00:47.57] How many boys now? [01:05.85]Oh,no!