Li Yundi began to learn the piano _____ the age of four and took part _____ the 14th Chopin International Piano Competition in 2000.[ ]

They haven’t finished their work. Maybe they have some trouble ______ it. [ ]

I have great ________ in finishing the work by myself. Could you help me?— No problem.

With all his money, he _________ worry about a little thing like 5 cents!

Jill will give ________a long talk tomorrow.