Parents must allow their children toreceiveeducation by law.

He likes to sleep with the window ________ and the door ________ at night.

下面组中的字母顺序前后是正确的。

Mr. Jenkin regretted _____ his secretary for the mistake, for he later discovered it was his own fault.[ ]

It was not until the accident happened _______ aware of my own foolishness.