Put appropriate punctuation marks in the following sentences. 为以下句子添加正确的标点符号。 1. A grandparent's job is easier than a parents. 2. It looks as if the sun goes around the earth but of course the earth really goes round the sun. 3. He neither smiled spoke nor looked at me. 4. Long ago in a distant country there lived a beautiful princess. 5. It was my aunt who took Peter to London yesterday not my father. 6. Ruth was invited to the party but she was ill so Jane went instead of her. 7. Sorry to disturb you could I speak to you for a moment 8. Is it any use expecting them to be on time