問題詳情：
根據要求，句型轉換
of them don’t have an environment with air. (改為全部否定句)
____________ __________ them has an environment with air.
box is too heavy for me to carry. (改為同義句)
The box is not ____________ _____________ for me to carry.
y started to learn Chinese in 2010. (改為現在完成時)
Betty ___________ ___________ Chinese ___________2010.
father bought a pair of glasses two days ago. (改為現在完成時)
His father ___________ __________ a pair of glasses __________ two days.
【回答】
1. None of 2. light enough 3. has learned; since 4. has had; for
知識點：句型轉換
題型：未分類
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