问题

Cindy shut the door heavily and burst into tears. No one in the office knew _____ she was so angry.

A:where
B:whether
C:that
D:why

正确答案是：

同类题型

Is your father in —No, he _______ for three days.

We _____ any Chinese class on Thursday, we ______ a PE class now.

Some of the rubbish, such as food, paper and iron, _____ away over a long period of time.

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______ it simply, if you don’t apologize to him，you will lose this friend.