make the sentences complete. Fill in (as, at, on, against, for)

Make the sentences complete. Fill in (as, at, on, against, for) if necessary. 1.I don't think he acts ... the law. 2. The twins were ...like as two peas. 3. She was so angry that she cried ... the top of her voice. 4. From her window Nelly could see lots of snow ... the top of the mountain. 5. Susie is one of the best pupils. She is always ... the top of her clas. 6. Think ... a while. I'm sure you know the answer. 7. Do ... you please, but I think you should come home on time. 8. How much does he earn ... a month? Заранее спасибо