1.jumped

2.won't arrive/clears

3.studied/have been

4.am

5.were you doing

6.will never forget/will miss/have known

7.will type

8.have done

9.got/found/remembered

10.was disbured/was

10.found/was/had learnt

1. When the alarm rang, Jack jumped out of bed quickly

2.  It's no use getting impatient. The plane won't arrive until the weather clear up

3. John and I studied at the same school and we have been great friends ever since

4. Don't wait up for me. I can't tell when I am back

5. Here you are! What were you doing here at this time if night?

6.  Good-bye, Ned. I never forget you. I will miss you more than anyone I ever have known in my life

7. The secretary will type all the documents long before the manager comes.

8. You see, I have done this kind of thing for last 30 years

9. When we got to the restaurant, we found that nobody remembered to reverse a table

10. I could tell at a glance that the pile of letters on my desk was disbured while I was out

11. As soon as she arrived England, she found that the language was quite different from the English that she had learnt  at school