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.

does he like to take pictures of his friends?

. scientists -б results-б helps-а officials-б applicant's-в watches (tv programme)-а watches-б

2.

он сдал выпускные экзамены на отлично. заводы санкт-петербурга производят автоматические механизмы подземным транспортом. наша промышленность быстро развивается.