One of the uses of … is to create operating systems, whic

h are

essentially sets of instructions that allow computers to function.

Vannevar Bush first … an idea in 1945 he called 'memex', whic

h we

now know as ‚hypertext'.

The most … operating system in the world is Microsoft Windows

We've all heard of Bill Gates, the … of Mic

rosoft and one of the

r

It made me really angry...........  I'd been cheated

Sorry, but I'm unable ------you

Helen is busy...... 

things ready for

her party.

It makes me angry ........ so many people wasting their time

This book about

astrophys

You are free  ......  whenever you want.