大家好！Could someone please check if these translations are correct? (1) 1. Meiyun is helping her mother with the cooking 美云在帮妈妈做饭 2. Mr. Lee’s friend is from New York 李先生的朋友从纽约来。 3. Jack, long time no see. 杰克， 好久不见。 4. Her sister is rather thin but has a chubby face. 他姐姐瘦瘦的不过有一张圆圆的脸。 5. Her sister just finished her high school 他的妹妹刚完中学。 6. Maming wants his sister to learn computer. 马明想他的妹妹学电脑。