Correct:
1) .I can't do the homework now. I am doing it then
2) .It is 2 p.m. Tom has rung the bell three times
3) .This was the worst book I have ever read
4) .After the well had been read, there were angry exclamations
5) ?Who would post this letter for me

the three men reached the bottom of the chimney at

the professor was not worried about running out of water but

the clouds covered the sun for three days so

the three men were tired of descent because

المفروض ان حضرتك تضع خط تحت الكلمة المراد تصحيحها