Look! The young man _____ is in blue looks like Mr. Clark.— I think so. [ ]

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

He____know the answer, but I’m not sure.

.It’s important __________ us students _______ carefully in class.

I get _____ at seven o’clock in the morning. [ ]