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_______does not really matter whether you win or lose. If you try your best, there is nothing to regret.?

A. It B. What C. That D. Which?

解析:

　考查it作形式主語。句子真正的主語是主語從句whether you win or lose。

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It can be learned from the text that _________.

Which of the following is an example of multitasking?

The underlined phrase “in check” in the last paragraph can be replaced by _________.

According to the text, Victoria Rideout would probably agree that kids should ______.