1. I ............ teaching for the next 5 years

will

will have

will have been

have

2. I .............. for 10 hours when you arrive

will sleep

will have slept

will have been sleeping

has slept

3. By 10 am I ............ to Spain for 10 hours

will fly

will have been flying

have flown

had flowed

4. He ............ this book for 2 years in the next Christmas

will write

will have been writing

wrote

have written

5. He ............ by tomorrow morning

will be travel

will have been traveling

has traveled

had traveled

6. I .............. the house for 2 hours

will have

will be cleaning

will have been cleaning

has cleaned