I still have a few doubts on a few sentences. Thank you very much, Writeacher.

1) I need to write an example containing the verb "awake/awoke/awoken". Could you please help me?
2) Do you remember when/why/the reason for which/ the place in which/ how/ the way in which Mary fell off the horse?
Forget all/everything that I told you.
He was interviewed by three companies, all of which offered him a job.
3) I sent out two letters, neither of which arrived. (neither is usally followed by a singular or plural form?)
I ordered two books, both of which arrived within a week.
4) However I tried, I couldn't get in touch with her. Is "however" the only possibility?
I wish the weather were better!
5) You needn't have phoned me. (You phoned me though it wasn't necessary).
Mary complained to the teacher because he always gives her too much homework.
6) Mary complained to the teacher about his (him) giving too much homework.
You can come whenever you want ("to" I don't know when to include "to").
7) He is going to England in order to/so as to improve his English/so that he will improve his English.

1. They were awakened by all the thunder and lightning.

She awoke at dawn.
The baby woke up because he was hungry.
(Since "awoken" has always sounded so wrong to me, I never use it!)

2. OK

3. (neither is singular)

4. No matter how I tried, I couldn't get in touch with her.

6. Use "his" not "him" before a gerund.
You can use "to" or not, whichever you wish.

7. OK

1) Sure! Here's an example using the verb "awake/awoke/awoken":

"I was abruptly awoken by the sound of thunder during the storm last night."

2) Here are different ways to complete the sentence using "when/why/the reason for which/ the place in which/ how/ the way in which":

- "Do you remember when Mary fell off the horse?"
- "Do you remember why Mary fell off the horse?"
- "Do you remember the reason for which Mary fell off the horse?"
- "Do you remember the place in which Mary fell off the horse?"
- "Do you remember how Mary fell off the horse?"
- "Do you remember the way in which Mary fell off the horse?"

3) In this case, "neither" is typically followed by a singular verb form. So, the correct sentence is:

"I sent out two letters, neither of which arrived."

Similarly, "both" is followed by a plural verb form:

"I ordered two books, both of which arrived within a week."

4) In the sentence "However I tried, I couldn't get in touch with her," "however" is one possibility. However, other similar adverbs such as "no matter how," "regardless of how," or "despite how" can also be used to convey a similar meaning.

5) Your understanding of "You needn't have phoned me" is correct. It means that the person phoned you even though it wasn't necessary.

Regarding the sentence "Mary complained to the teacher because he always gives her too much homework," it is grammatically correct and conveys that the teacher consistently assigns an excessive amount of homework to Mary.

6) In the sentence "Mary complained to the teacher about his (him) giving too much homework," you can choose to use either "his" or "him." Both are grammatically correct, but the meaning may slightly differ. "His" implies that Mary is complaining about the action of giving too much homework, while "him" implies that Mary is complaining about the teacher as a person.

For the sentence "You can come whenever you want," the word "to" is not necessary. It can simply be written as:

"You can come whenever you want."

7) All three options are correct and convey the same meaning. You can use either "in order to," "so as to," or "so that he will" to indicate the purpose of going to England, which is to improve his English.