Helping others is a habit, ___ you can learn even at an early age.

As for me, few excitements can beat ______of being admitted to my favorite university.

I hope there are enough glasses for each guest to have ____-

Today’s world is changing rapidly, making _____ necessary for us to continue learning otherwise we can’t keep up with the time.

 --Excuse me, I want to have my watch fixed, but I can't find a repair shop.--I know___________ nearby. Come on, I'll show you.