he used a thicker blanket.he wanted to keep warm
题目
he used a thicker blanket.he wanted to keep warm
=he used a thicker blanket____ ____ to keep warm
=he used a thicker blanket____ ____he ____keep warm
答案
He used a thicker blanket.he wanted to keep warm.=He used a thicker blanket (so as) to keep warm.=He used a thicker blanket (so that) he (could) keep warm.他使用厚毯子来保暖.so as to do（不定式）,为了...
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