—I left my keys in my office. Could you help me ___        them?—OK．I’ll do it at once．

— Do you often practice ______ English with your classmates after class?— Yes, and it improves my speaking skills. 

There are so many kinds of pens in the shop ,I can’t decide ______.

— Where are you going, Jack? — My hair is too long. I’ll have it _______.

My computer has broken down. I’ll get it _______ this afternoon.