Little Jim sat under the tree, about that maths problem.A.to thinkB.and thinksC.
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Little Jim sat under the tree, ___ about that maths problem.
A.to think
B.and thinks
C.thought
D.thinking
试题答案
D
Little Jim sat under the tree, ___ about that maths problem.
A.to think
B.and thinks
C.thought
D.thinking
D