1．Sometimes there’s so much work for you to deal with and you feel it’s beyond your ability to fulfill it. Actually, you can take (measure) to help yourself.
measures 解析：句意：有时候，你有太多的工作要处理，而你觉得完成它超出了你的能力。事实上，你可以采取措施来帮助自己。measure作“措施，方法”讲时，为可数名词，take measures to do sth.为固定搭配，意为“采取措施做某事”，故此处应用复数形式。
2．It thinks that Singlish may hurt people’s (able) to speak standard English and make it hard for them to communicate with foreigners.
ability 解析：句意：它认为新加坡式的英语可能会伤及人们说标准英语的能力，使他们很难与外国人交流。设空处前有名词所有格people’s修饰，应用名词。
3．In order to understand the role and function of belief in our society, one way is to compare the (different) between a society with belief and a society without it.
differences 解析：句意：为了理解信念在我们社会中的作用和功能，一个方法就是比较一个有信念的社会和一个无信念的社会的差异。设空处前有定冠词修饰，应用名词；根据句意，此处指不止一个差异，应用名词复数形式。
4．After several (day), I got my watch back and it was still working.
days 解析：句意：几天后，我把手表拿回来了，它还在运转。day为可数名词，其前有several修饰，应用复数形式。
