Put the verbs in brackets into the present continuous, present simple,past simple og past continuous

I ...(clean) the windows when the telephone....(ring)
"What is that noise?" James ...(repair) his bike at the moment.
He ...(read) a book when his mother ...(call)
" ...(be) you busy?" No, what ...(you/want) me to do?"
they ...(sing) while we ...(play) some music
Susan is a nurse. She usually ...(work) at night.