hello i have a problem when i deal with future tense teaching.
i dont know if there is any difference in the use of "be about to" and "will".
there is an exercise from a workbook for grammar.
Construction_____________(is about to begin/ will begin) next month and we
expect it will take six months to complete.
the answer is "will begin".
another sentence in this exercise is...
A: Do you sport yourself?
B: Yes, I cycle a lot and, in fact, I ______________(am just about to go/will go)
on a hiking trip to Nepal.
the answer is "am just about to go"
so i can not see when to use "be about to" and when to use "will".
is there any principle?
thanks for your patience.