Put the verbs in brackets into the correct tense. Dear Kathleen. I 1) . (write) to tell you my news....

To complete the sentences with the correct tense, we need to consider the context and the sequence of events. Here's a detailed explanation for each gap:

1) am writing - Present Continuous tense is used here because the action of writing is happening at the moment.

2) has chosen - Present Perfect tense is used to indicate that the school has selected you at some unspecified time before now, emphasizing the result of that action.

3) am packing - Present Continuous tense is used because the action of packing is currently in progress.

4) am leaving - Present Continuous tense is used to describe a planned future event, which is the trip happening next week.

5) has booked - Present Perfect tense is used to show that the action of booking the ticket has been completed recently or at some unspecified time in the past, with relevance to the present.

6) have been waiting - Present Perfect Continuous tense is used to emphasize the duration of waiting up to now.

7) have finished - Present Perfect tense is used to indicate that the action of reading two books is completed, with relevance to the present.

8) have borrowed - Present Perfect tense is used to show that the action of borrowing another book has been completed recently or at some unspecified time before now, with relevance to the present.

9) am becoming - Present Continuous tense is used because the change of state (becoming more nervous) is happening gradually over time.

Here's the complete text with the verbs in the correct tense:

Dear Kathleen,

I am writing to tell you my news. My school has chosen me to spend six weeks at a school in the USA. I'm very happy about it! At the moment, I am packing things for my trip, because I am leaving next week. My mother has booked the ticket. I have been waiting for this opportunity for ages, so I'm very excited. I have finished reading two books about the USA and I have borrowed another one from the school library. I am becoming more and more nervous every day!

Well, I must go now. I've got a lot of things to do. I’ll write to you from the USA.

Dear Kathleen. I am writing to tell you my news. My school has chosen me to spend six weeks at a school in the USA. I'm very happy about it! At the moment, I am packing things for my trip, because I am leaving next week. My mother has booked the ticket. I have been waiting for this opportunity for ages, so I'm very excited. I have finished reading two books about the USA and I have borrowed another one from the school library. I am becoming more and more nervous every day! Well, I must go now. I've got a lot of things to do. I will write to you from the USA.