up to here with smt?

[Linh Bui Hoang]

I need your help with the following completions
1. I need an assistant – I’m up to ____ with work.
A.my eyes B.my ears C.here D.All are correct
My teacher said all were correct but I am really not sure if this is a correct answer.
I've looked up the dictionary and found out that "up to my eyes/ears" goes with preposition "in", not "with". But besides, I find nothing to do with "here". I wonder if "up to here with something" would make sense.
2. Wow-flowers! I love them, thanks – they are absolutely ____
A.Stunning B.gorgeous C.beautiful D.all are correct
3. Phew! It’s too hot to go outside, it’s absolutely ____
A. Boiling scorching baking all are correct
I think that all are correct in both sentences 2 and 3 but I'm not sure.

[Jamie (K)]

"Up to my ears", "up to my eyeballs", "up to my neck" and "up to here" can all be used with either "in" or "with".

I don't ever hear anyone say "up to my eyes", but that doesn't mean the expression doesn't exist.

[Linh Bui Hoang]

Okay, thank you very much.

[Mister Micawber]

.
Yes, 'up to my eyes in/with' is also heard. Any dictionary which strictly excludes 'with' from this casual expression is too prescriptive.
.
_________________
Native English teacher at Mister Micawber's