用适当的介词,副词或连词填空The clever girl always competes___her classmst

用适当的介词,副词或连词填空
The clever girl always competes___her classmstes___the first place.

The number___the people coming here is large.
I had a fight___my parents.
We can get along well____our friends.
If you meet new words,please look____the dictionary.
I'm worried____me school grades.
Now many children feel good_____themselves.
They have more time____proper communication.
Can you exrlain____me how to do this math problem?
I think gift giving is different___different countries.