1．—Can I ask for a leave tomorrow, Mrs. Harmon?
—________.You've missed half of your work already.
A．That all depends B．Forget it
C．Never mind D．Don't worry
解析：选B 句意：“哈蒙夫人，我明天能请假吗？”“算了吧，你已经错过了半天的班了。”that all depends“看情况而定”；forget it“算了吧”；never mind“没关系”；don't worry“别着急”。根据句意可知B项正确。
2．According to the rule of that company, all the workers are offered a ________ medical examination for free once a year.
A．normal B．usual
C．regular D．common
解析：选C 句意：根据该公司的规定，所有工人每年免费接受一次定期体检。 regular“定期的，有规律的”，符合句意。
3．________ many difficulties during his childhood, he grew up into a strongminded man.
A．Having experienced B．Having been experienced
C．Experiencing D．Being experienced
解析：选A 句意：在童年经历了许多困难之后，他成长为了一个意志坚强的人。“经历”困难在先，故用完成式，分词的逻辑主语是其执行者，故用主动式。
