Choose the correct options.
1 The weather changed/
was changing while we
came/were coming down
the mountain.
2 We ran/were running
through the woods when
Angelica fell/was falling.
3 A bird landed / was landing
on my shoulder while I ate /
was eating a sandwich!
4 Marla watched /
was watching TV when her
friend arrived/ was arriving.
5 I got/was getting a call
while I waited / was waiting
for the bus.
6 The passengers sang/
were singing when the plane
took off/ was taking off.