1.he says he.... the book by the time i.....him to give it back.варианты- will read,asked; would have been reading,asked; will have read,ask; will have been reading,ask.
2.she saus that she..... english lessons twice a week.варианты- will be taking; would take; would be taking; will take.
3.i was sure that kate....by the time i....варианты- comes,have arrived; will come,arrive; came,would arrive; would have come,arrived.

1. He says he will have read the book by the time I ask him to give it back. 2. She says that she will take English lessons twice a week. 3. I was sure that Kate would have come by the time I arrived.