_______ Children's Day，all the children are very happy．（ ）
A．toB．InC．On
Ann grows up in a _______family．So she always feel happy when she gets home．（ ）
A．richB．strictC．lovingD．serious
Whose dictionary is this？
Oh，it's Peter's．He was looking _______it everywhere．（ ）
A．atB．forC．likeD．after
Why do you listen to French songs all the time？
This is just my ________to learn French well．（ ）
A．wayB．roadC．choiceD．reason
The mother was excited by _______news that his son raised money for charity．（ ）
A．/B．aC．anD．the
We have been expecting Rio 2016 Olympics_______ the Olympic flame（圣火） was lit．（ ）
A．ifB．unlessC．sinceD．though