1. It's so noisy [that] I can't sleep. Ok, good. Also: The noise is keeping me awake. 2. This dog bites whoever he sees. OK, technically incorrect, but commonly heard. Correct (now rare) This dog bites whomever he sees. 3. I am a thorn in her eyes. = I am a thorn in her side. (?) <--- Another way of saying "She hates my guts"? Have not heard "thorn in her eye", but seems ok. "A thorn in someone's side" is an impediment, an anoyance, rather than directly saying they don't like you. The result is likely the same. I am not her favourite. She loathes me. Many ways to say this. 4. It's better to go a bit early. <--- "a bit early" or "a bit earlier"? Or are both correct? Both correct. Generally "earlier" is a copmparative, so you need to say, or have understood something to compare with. I usually turn up an hour late, but it's better to go a bit earlier. 5. Are you letting him be responsible for it alone? <--- I guess what I'm trying to say is, "Is he going to be the only one responsible?" Ok. "take responsibility" is also a standard collocation. 6. Let's take a picture! Let's make a good memory. (Or should "memory" be plural? "Let make some good memories"?) 7. Can you resolve this on your own? = Can you take care of this (this matter) by yourself? 8. He hasn't said a word today. 9. Dad is against our marriage. = Dad won't allow us to get married.