6. Was he not __doing ___ his homework?
doing
do
done
7. Snow _was falling lightly. Suddenly a reindeer appeared. fell
was falling
is falling
8. Somebody threw a shoe at him __when ___ he was speaking. after
when
while
9. They __were watching TV when I arrived. were watching
were watched
watched
10. I was reading a detective story __while ___ I heard a noise. during
while
when
Объяснение: