Seeing or hearing others laugh can make us smile or _____ us _____.
cheer up
When a member of a certain group is angry, others try to _____ him _____.
calm down
It's very hard and unhealthy to __________ a yawn. You should just let it happen.
hold back
In the end, they __________ to be sisters! I couldn't believe it.
turned out
It's very important for all living beings to __________ strong group relationships in order to survive.
build up
If grown-ups have a problem, they _____ it _____ to solve it.
talk over
Yawning is one of the most common contagious behaviours that we automatically __________. We just do the same when we see it.
respond to
My best friend was offended with me and I had no idea, but we managed to _____ it _____.
work out
Ants __________ their sense of smell to find their way home. That is, they depend on it.
rely on
Most animals clean themselves and __________ their youngs too.
clean up
The detectives __________ the case of the stolen jewels. They had already investigated a similar one before.
looked into
The rules __________ everyone without exceptions.
apply to
