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1.Many students want to be ____ (志愿者) for the Asian Winter Games in Changchun.
2.The air is much ______(稀薄) over 5,000 meters above the sea.
3.They ______ (筹集) 1,200yuan for charity yesterday.
4.He said he wanted to do more speaking to ________(提高) his English.
5.Children must wash their clothes (自己).
2.The air is much ______(稀薄) over 5,000 meters above the sea.
3.They ______ (筹集) 1,200yuan for charity yesterday.
4.He said he wanted to do more speaking to ________(提高) his English.
5.Children must wash their clothes (自己).
