Put the verbs in the brackets into the correct tense.compare with a partner. 1)a: kids\come) back from their holiday? b: ) on the 15th , so a week earlier. 2)a: ) for a new flat at the moment. b: ) anything yet? 3)a: sister\always\leave) her stuff everywhere? b: yes and she (always\complain) about me beineg messy! 4)a: can you drive? b: i (take) lessons for two weeks now. 5)a: oh no! i (lose) my keys again. b: not again . you (always\lose) your keys.

1) a: when will  the kids  come back from their holiday? (future simple) b: school  starts on the 15th, so a week earlier.(present simple) 2) a: sue is  looking for a new flat at the moment. (present progressive) b: has  she  found anything yet? (present perfect) 3) a does  your sister  always  leave her stuff everywhere? (present simple) b: yes and she is  always   complaining about me being messy! (present progressive) 4) a: can you drive? b: i'm  learning. (present progressive)  i've been  taking lessons for two weeks now. (present perfect progressive) 5) a: oh no! i've  lost my keys again. (present perfect) b: not again! you are  always  losing your keys! (present progressive)

Hi mum, how are you? -hi, dear, just fine, how are you? -fine , thanks, you know, i'm going to america on business.  -you don'd say so! with whom are you going? where are you going to stay, who will pay for everything? america is such an expensive country to stay at. -chill out, mum! i'm going with my collegues. they have already been there many times, they know where to stay and ben will pay for the tickets. -well and who will help you to make a presentation? i'm sure you won't be able to do it yourself. -mum, i'm not a little boy,i'll do everything as good as i can and my colleagues will also help me. besides i can't miss the chance of visiting a foreign country! i just want you to keep calm and not to worry! -ok, dear, i'll try. and you take care of tourself! -thanks mum, bye! -bye!

computer dreamer who invented the mouse

douglas c. engelbart was 25, just engaged to (be married) and

thinking about his future when he had a dream in 1950 that

(would change/has changed) the world.

he had a good job working at a government aerospace

laboratory in california, but he wanted to do something

(more) with his life, something of value that might last,

even outlive him. then it came to him. in a single stroke

he (had) what might be safely called a complete

vision of the information age.

the angel in his dream spoke to him of technology’s

potential (expanding) human intelligence, and from it he

made out a career that indeed had lasting impact. it led to a

host of inventions that became the basis for the internet

and the modern personal computer.

in (later) years, one of those inventions was given a

warmhearted name, reminding of a small, furry creature

given to scurrying across flat surfaces: the computer

mouse.

computing was in its infancy when dr. engelbart entered

the field. computers were ungainly room-size calculating

machines that could (be used) by only one person at a

time. someone would feed them information in stacks of

punched cards and then wait hours for a printout of

answers. interactive computing was a thing of the future,

or in science fiction. but it was growing in (dr. engelbart's)

restless mind.

in his dream, he saw himself (sitting) in front of a large

computer screen full of different symbols. the screen, he

thought, would serve as a display for a workstation that

would organize all the information and communications

for a given project.