急急急急急~问几个申请填写的小问题

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第一个问题楼主傻逼了，趁着没人看见赶紧删掉
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In addition to submitting the above items, international graduate applicants must show adequate subject preparation for the proposed graduate major and obtain a recommendation for admission by the Graduate Studies Committee in the proposed major. All complete applications are reviewed by the Graduate Studies Committee to which they are directed if they are received by the graduate program deadline. The Vice Provost and Dean of Graduate Studies must approve all admissions.

这句话什么意思啊
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please include your area code
我这里的区号是4位的，导致primary phone里少一位填不下了，这可如何是好啊？还是说区号开头的0不用填？比如北京就是10？同样道理country code是不是就是86？
. 1point3acres4
attended from month year
attended through month year
这里的attended through是预期毕业时间的意思不？为什么我觉得这个through这么难理解……

3.貌似0真的不用填