Crack a Smile
Meaning: to smile or grin (sometimes when you do not want to or should not)
- The student cracked a smile when the teacher was mad and then had to do extra homework.
- I was trying to be serious, but cracked a smile when I remembered a joke I heard.
- After I saw the girl crack a smile, I went over to talk to her.
My father is very serious, but I saw him crack a smile when he…
a) got some bad news.
b) was playing with my baby sister.
c) when he dropped a beautiful photo.
Read answer below
B, even though he rarely smiled, playing with the baby made him happy.