题目内容
从所给的四个选项中选择最佳答案
Look! They seem ______ something on the fire over there.
[ ]
A.to cook B.to be cooking
C.to have cooked D.to cooking
答案:B
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题目内容
从所给的四个选项中选择最佳答案
Look! They seem ______ something on the fire over there.
[ ]
A.to cook B.to be cooking
C.to have cooked D.to cooking