指出句中划线部分是哪一类非谓语动词作哪一类成分
1. The woman drinking coffee over there is a relative of my mother. ___________________
2. At present, the situation both at home and abroad is encouraging. ___________________
3. The problem which he met in the new school is quite puzzling to him. ___________________
4. If you want to work out the problem efficiently, a good working method is a must. ___________________
5. Her present job is teaching English in a remote village, which she thinks is very rewarding. ___________________
6. During the following days we’ll make good preparations for the sports meeting to be held next week. ___________________