1·The United States company must file a petition with the u. S. Department of homeland security (DHS) for a work permit for the applicant.
在美国的公司(呈请人)必须为签证申请人(受益人)到美国国土安全部申报工作许可纸。
2·In order to remain a permanent resident, a conditional permanent resident must file a petition to remove the condition during the 90 days before the card expires.
为了保留永居权，条件绿卡持有人需要在条件绿卡2年有效期失效前的90天填写一份申请来解除条件。
3·In order to become a lawful permanent resident, eligible investors must file Form I-829, petition by Entrepreneur to Remove Conditions.
为了成为合法的永久居民，符合资格的投资人必须递交I-829表（投资人请求去除条件的申请表）。
4·A creditor can file a bankruptcy petition with the court against an individual , a firm or a partner of a firm who owes himher money.
债权人亦有权向法院提交破产呈请，起诉拖欠债项的个人、公司或公司合人。
5·U. s. employer or foreign employer must file the petition, but a foreign employer must have a legal business entity in the United States.
美国雇主或外国雇主必须呈递申请，但是外国雇主必须在美国有合法的商业实体。
6·After service, the defendant is entitled to a certain period of time within which to file his pleading, or answer, to plaintiff's petition.
（传票送达后，被告有权在一定期限内对原告的申请提出答辨。 ）“a certin period of time（一定期限内）”是不确切的时间，是模糊表达。