С! нужно задать все возможные вопросы к предложению в present simple: обычные,специальные и к подлежащему: jill walks in the park on sundays.

Does  jill  walk in the park on sundays? does  jill  walk in the park on mondays? when  does  jill walk in the park? where  does  jill walk on sundays? how  often does jill  walk in the park? how  long  does jill walk in the park on sundays? who  walks  in the  park on sundays?

In a letter, the emphasis is made (причастие ii, часть сказуемого) on a high quality appearance. letters have to be typed (причастие ii, часть сказуемого) or word-processed (причастие ii, часть сказуемого) accurately on the company's headed (причастие ii, определение) paper with a smart, clear layout. international mail tends to be slow and in some countries the post is unreliable. important documents or valuable items can be sent (причастие ii, часть сказуемого) by registered (причастие ii, определение) mail - or they can be sent (причастие ii, часть сказуемого) by courier. a fax is a facsimile copy оf a document which is transmitted (причастие ii, часть сказуемого) by normal telephone lines to another fax machine. some faxes are exactly like letters, some are printed (причастие ii, часть сказуемого) on special fax forms rather like memos, others are simply handwritten (причастие ii, определение) messages. the sender of a fax can't be certain if the message has been received (причастие ii, часть сказуемого) perfectly sometimes lines get missed or are illegible. a fax is not usually a legally binding (причастие i, определение) document. in a telex readers often overlook some errors of spelling and grammar. abbreviations such as tks (thanks) and rgds (regards) are common in telexes. the sender knows when each telex has been transmitted and received. (причастие ii, часть сказуемого) a telex can be used (причастие ii, часть сказуемого) as a legally binding (причастие i, определение) document. internal mail within a company or between branches of the same firm is usually in the form of memos: these may be brief handwritten (причастие ii, определение) notes or longer, word-processed (причастие ii, определение) letters. most firms use special memo pads for internal messages. a memo to a senior english-speaking (причастие i, определение) member of staff may need as much care as a letter to a client. the style that is used (причастие ii, часть сказуемого) depends on the practice within the company and on the relationship between the people involved. (причастие ii, определение)