這種情況該申請回美證或申請公民嗎？ - 移民

2015/11/10拿到2年臨時綠卡，
2017/11/10綠卡過期（8月已送件受到延期一年信）
2018/8 收到綠卡再延期半年的信

出境時間
2016/2 3個月，
2017/3 1個月，
2018/4/22-2018/5/12 3週，
2018/7/31-2018/11/5 3個月又6天

原本預計就是一年回去台灣一次的，
可是7月時我媽被檢查出長腦瘤，
因為是腦部動刀，
我決定回去陪她，
於是2018/7/31時又出境，
但是回台灣後我媽動完手術做進一步檢查後，
發現是肺腺癌四期，
當下我媽很難接受，
幾經考慮後辭掉在美國的餐廳工作多陪我媽。

昨天入境時被移民官詢問了許多問題讓我以為入境不了，
他問了以下問題（括號為我的回答）：

Where are you going to? (Denver)

Denver? That’s where you live? 同時狐疑地看著我的報關單
(Oh, I thought you were asking me where I’m transferring to. Loveland, I live
in Loveland. )

Where do you work at in the US?
(I had a job at a restaurant, but I had to resign to take care of my mom)

When did you leave the US? (July 30th)

Well, you actually left on July 31st. So from 7/31-11/5, you were out of the U
S for over 4 months?
(剛下飛機意識昏沈以為他是三個多月直接算成四個月，回答了yes)

Are you still married? (Yes. My husband understands it’s an emergency. He agr
eed with me staying with my mom. )

You were gone for such a long time.
( Yes, my original plan was to be there for my mom’s brain surgery but then w
e found out she had stage four lung cancer so I needed to be there for her. I
have paperwork to prove she was hospitalized. )

How long are you staying this time?
(About three months. My mom’s situation isn’t steady. She might not have too
much time left so I want to be there with her. )

So what food are you declaring?
(Seafood, snacks, and chocolate. No any meat. )

But seafood IS meat.
( oh, I mean any other meats other than seafood.)

Is that all you’re declaring?
(You can look at the back of the form. I wrote down all the items. )

反正我覺得我有點險過，
因為他當下是把我的東西都夾進護照又東張西望了一下，
感覺是要找人帶我去小房間（純粹猜測），
張望完後他才又翻開蓋我的護照蓋入境章，
我到家後發現他上面寫out for 4 months。

鋪張了很久，
我的問題是，
雖然我的10年綠卡還沒下來，
可是理論上公民申請還是可以先丟，
我也是傾向先申請的，
不過我接下來的計畫應該會是在美國三個月後再回台灣，
之後保持美國三個月、台灣三個月這樣的情況，
但是還是一年會在美國超過半年，
感覺這樣雖然符合公民申請資格，
可能還是會被面試官覺得誠意不足？
（因為最接近的一年出境頻繁時間又快半年）

又，我的情況雖然離境不會超過半年，
但在這次被嚴苛訊問後，
我是否該申請回美證以求下次能順利入境？
謝謝回答

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