1.Join these split sentences. 1. Knowing how a) an electronic machine which is used to store to use the computer and organize information
2. The term “virtual reality” b) when your computer crashes
3. A computer is c) describes computer images which appear
4. Customers’ names and d) you should invite a specialist addresses are stored
5. More and more schools e) your computer can become obsolete are using multimedia
6. In only a few years f) as a teaching aid
7. It is very annoying g) is a useful skill
8. If you can’t fix h) on our database
2.Does He always ring his secretary or his father early in the morning ?
3.Does He always ring his secretary early in the morning ?
4.Who always rings his secretary early in the morning?
5.When does he ring his secretary?Whom does he always ring early in the morning ?
слушать - listen -listened-listened
сидеть- sit -sat -sat
показывать-show - showed -showed
говорить- say-said-said
to rise-rose-risen
, to stand- stood -stood
, to catch- caught -caught
, to give-gave -given