Make up a story what happened to rotty and moldy​

1)how many exercises you (do) since you started your homework?

2)mrs izard (write) this book since her husband died.

3)you (know) this man? how long you (know) him?

4)we already (tank) about it for a week.it's time to do something !

5)they (talk)for two hours and (not finish) yet.

6)mr dix is busy.how long he (be) busy?

7)caroline (think) about mark since he left.

8)how long you(have) this hat? i (have) it for years.

mobile phones ,keeping fit

mobile phones entered our life not long ago, but today we can’t imagine our life without them. some doctors say that they are very harmful to the health, especially to the health of children.

the mobile phones emit electromagnetic radiation, and a number of different scientific institutes claim that this radiation is really very harmful, though still there is no hard evidence that showed that mobile phones caused harm in real humans. i try to talk over my mobile phone as less as possibleto avoid the health risks.

a bicycle, also known as a bike, pushbike or cycle, is a human-powered,pedal-driven,    single-track vehicles, having two wheels  attached to a frame, one behind the other. a person who rides a bicycle is called a  cyclist, or bicyclist.

bicycles were introduced in the 19th century and now number about one billion worldwide, twice as many as  automobiles. they are the principal means of transportation  in many regions. they also provide a popular form of recreation, and have been adapted for such uses as children's toys, adult fitness, military and police applications, courier services and  bicycle racing.