`3.``=>`I am the fastest runner.
`4.``=>`Does your school have a library?
`5.``=>`What is your age?
`6.``=>`Would you like a cup of tea?
`7.``=>` I don't work as hard as my sister does.
`8.``=>`Is this the best refrigerator you have ?
`9.``=>`It is not easy to find an apartment in a big city .
`10.``=>` There are 28 days in February.