问题

ys, many parents are trying to either prevent their children from failure, or protect them from the knowledge ______ they have failed.

A:when
B:where
C:what
D:that;

正确答案是：

同类题型

Let’s ____ food ____ the store.

unately, it rained for two weeks, whichcompletely _______ our plan.

__, Mark Twain became worldwide famous at once [ ]

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