By September, I __ (help) my friends with a street cleaning project for a year.
will have been helping
The town __ (receive) substantial investment to improve services for residents.
will receive / is going to receive
The council meeting __ (hold) on Saturday evening.
is being held/will be held/is going to be held
The community center for retired people __ (built) by next summer.
will be built / will have been built
The leisure center __ (start) offering parenting classes, but there was little demand.
was going to start