Use the right forms to complete the text last summer my uncle (travel)-

      The clock is a mechanical, electrical or atomic device that measures the passage of time. Mechanical models date from the late Middle Ages. All mechanical models must have a sourse of energy - for example a falling weight or a wound spring. All such models must be carefully regulated to make them run accurately. The energy turns  a system of wheels that move the hands.

      The computer is based on a microprocessor, a small chip that performs the operation of a central processing unit. The early kinds of computers had a rather small memory, typicaly in the megabyte which is great improvement. Computers has changed peoples lives. We are can not imagine our lives without computers and internet of course.

      The laser is generates ,, well organized,, light. The mechanism uses a process known as stimulated emission. It generates electromagnetic radiation in a special microwave region. Nowadays these devices sre widely used in different ways, among which is medicine. The laser is often used to make quick and painless operations.

1) My elder brother told me to take those flowers when I left home

2) The lady told the passenger not to speak loudly

3) She asked me if he had travelled abroad

4) They said that we were the brightest students they had ever taught

5) Ann asked her son what had the teacher told him in the lesson

6) He asked me if I was going to type all the letters

7) The professor asked his students which of them could do the assignment

8) Our mother said that we would have to take the dog for a walk

9) A stranger asked me if I knew where is the Bolshoy Theatre

10) Ben's friend asked him if he was  keen on playing the guitar