Definition: the central point in a period of time Level: B1
这封信应该在下周中之前到达。
The letter should arrive by ___the ___middle of next week.
噪音在半夜把我们吵醒了。
The noise woke us up in ___the ___middle of the night.
有一次，她在半夜醒来，看到了她丈夫前妻的鬼魂。
Once, she woke up in ___the ___middle of the night and there was the ghost of her husband's wife.
