第三节(共3小题；每小题1.5分，满分4.5分)
请听下面一段材料，从所听到的内容中获取必要信息，将第18至20小题补充完整，每空不超过3个单词。听力材料朗读两遍。你有45秒钟的答题时间。
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400 Chinese students took part in
the survey |
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18 of the students complained about the
schoolwork |
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44% of the students would like
to have a part –time job |
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19 of the students said they had part-time
jobs |
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75% of the students 20 in their spare time |
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56% spent time sleeping or doing
nothing at all |