заполнить пропуски правильной формой глагола1. When parents arrived home their children...a)

Заполнить пропуски правильной формой глагола
1. When parents arrived home their children...
a) were sleeping b) slept c) have slept already d)have been sleeping
2. Galileo proved that the earth......round the sun
a) had moved b)moves c) will move d) is moving
3. I.......to London in next week.
a) came b)shall come c) comes d)had come
4. We......our work already.
a)finished b)shakk finish c)have finished d) are finishing
5...........your brother......at the Institute?
a)are studyng b)shall study c)do study d ) does study