题目内容

按要求写出单词的正确形式。
1. before (对应词) _____________ 
3. cheap (反义词) _____________
5. dollar (复数) _____________
2. gift (同义词) _____________
4. buy (同音词) _____________
6. cost (三单) _____________
1. after  2. present  3. expensive / dear  4. by  5. dollars  6. costs
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