用适当的并列连词填空。
1.Some choose to avoid the problems while others decide to deal with them.
2.First, I'm openminded and warmhearted, so I'm getting along well with everyone.
3.You can contact me either by phone or by email if you want to know more about our university.
4.I worked hard at English and devoted all my spare time to practicing it, but I failed to pass the midterm examination.
5.It is not how much we do but how much love we put into what we do that benefits our work most.
6.It's really very dangerous.One more step, and the baby will fall into the well.
7.I was walking along the river when I heard a boy crying for help.
8.Not_only can students improve their writing skills in this way but_also they can strengthen their selfconfidence.