Find and correct the mistakes if any. 1.1 think you made a mistake to come here. 2. When he told me about his plans, I couldn't help to be surprised. It absolutely wasn't in his line. 3.1 can't help you preparing this historical sketch. 4. It's no use persuading such a stubborn person. 5. People often have difficulty to learn a foreign language. 6.1 congratulated Ann to enter University. 7. We called after him, but he did not even stop turning his head. 8.1 don't remember him to tell anything of the kind. 9. They couldn't forgive me for wasting so much time. 10. It is not worth to take up the matter now; it can wait.