Hewassopleasedwithallwehaddoneforhimhewroteusalettertopraiseforit.Athat；thatBwhat;thatCthat;whichDwhich;what

题目详情

He was so pleased with all ____we had done for him____he wrote us a letter to praise for it.
A that；that
B what;that
C that;which
D which;what

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答案和解析

A
第一个that是因为all that,既然有all,不能用what
第二个that,是因为so...that,他很开心,以至于写了封信给我们表示感谢

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