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（1）
Are you carrying too much on your back at school? Lots of kids(孩子) at the same age as you are. Not only are students in China 1 from this problem, but kids in the United States are 2 fed up with（饱受……之苦） heavy school bags.
Experts are starting to 3 that more and more young students are having back and neck problems as a result of school bags 4 too heavy for them. “It’s hard for me to get up the
Are you carrying too much on your back at school? Lots of kids(孩子) at the same age as you are. Not only are students in China 1 from this problem, but kids in the United States are 2 fed up with（饱受……之苦） heavy school bags.
Experts are starting to 3 that more and more young students are having back and neck problems as a result of school bags 4 too heavy for them. “It’s hard for me to get up the
