When expressing politeness, opinions, making recommendations and suggestions, or simply giving advice, Modal Verbs are very useful. In fact, Modal Verbs are essential in formal situations.
The following group of verbs are called Modal Verbs – can / could, may / might, shall/should, will / would. Modal Verbs can be part of a Verb Group and express particular meanings, such as ability, possibility, permission, advice, recommendations, necessity, obligation. Will / shall and would / should are also used to form future tenses.
Modal Verbs are followed by the infinitive form of the main verb:
1、In most countries of the world students ____ pay university fees. There is simply no choice.
2、There are not many jobs a student ____ do part-time. Most students find jobs as waiters, serving in restaurants, or working in kitchens and so on.
3、When I was going to university, I ____ find a part-time job to earn some pocket money, because my family was not rich.
4、However, in Britain and some other countries, including even China, students ____ borrow money from banks to cover compulsory fees. Banks are now making it possible for students to borrow money to cover fees.
5、 I really believe that all students ____ get a casual job, chiefly because it is good experience. This was the advice my father gave me and it helped me enormously.