求教: 父母探親越期, 可邀其它人嗎?

請教各位:

父母幫帶小兒(I supported their cost to stay in US, and I'm a greencard holder),  他們延期過, 簽證越期. 其實他們也呆不住, 打算過幾個月後, 小兒去DAYCARE 了就回國.

弟弟一家想暑假定來玩一個月, 我覺得很難簽證, 但不想拒絕, 所以在寫I-134,讓他們試一下.

問題: 如何填

9. I have previously submitted affidavit(s) of support for the following person(s). If none, state "None".

10.I have submitted a visa petition(s) to U.S, Citizenship and Immigration Services on behalf of the following person(s). If none, state "None".

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