1£®We will__have__finished(finish) most of the work by the end of next month.

2£®Tomorrow morning grandma will__be__sitting(sit) in the kitchen with us.

3£®By the time he gets to school , the lecture will__have__been__(be) on for 30 minutes.

4£®It is said that the weather is better in Guangzhou than__that in the west.

5£®When they set off for the party, their mother asked them to behave__themselves(they)£®