Those who failed to get into the art exhibition________ disappointed as many of the artists who should have appeared did notcome.

You should ________ your son. He works harder than before.—Thanks, I will.

I did badly in my English exam. How unlucky I am!— . Cheer up! Everything will be OK.

下列各句中，没有语病的一句是（ ）

Tom, _________afraid of speaking in front of people. You are the best one.