1)i think )all about it by the time )her.
2)i promise, )this book by the weekend and then )it to you.
3)i think )building the house by the time the )and then in)by the new year.
(have)lunch with me tomorrow? -i'd love to, but i'm afraid )my exam at that time.
5)he spends all his spare time planing trees. he says that by the end of next year )more than one thousand.
6)by this time next week, )on his book for a year.
7)he has bought this tv-set on credit. )all the money by the 21st of august.
8)by next year )in this city for twenty-five years.