future perfect
__________ the sun (rise) __________ __________ by the time you get up tomorrow?
Will the sun have risen by the time you get up tomorrow?
How many kids __________ you (have)__________ __________ by the time you are 35?
How many kids will you have had by the time you are 35?
My classmate (not / finish)__________ __________ __________ his homework before class.
My classmate will not have finished his homework before class.