单项选择 适中0.65 引用1 组卷42
Firemen can put out fires by_________ hose pipes.
A.use | B.using | C.to use | D./ |
21-22六年级下·上海·单元测试
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—How much difficulty did you have ________ this problem?
—None. It’s quite easy.
—None. It’s quite easy.
A.solve | B.to solve | C.to solving | D.solving |
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