Question

can anybody tell me how to do it I will mark him brainliest I promise​

Answer 1

Answer:

1. with
2. of
3. that
4. with
5. said
6. with
7. then
8. then

Answer 2

Passenger airplanes mostly fly (at) speeds less than that (of )sound. Airplanes (which) can fly at greater speeds have been built. This is( because) if they fly (at) speeds greater( than) sound,( the) fuel consumption increases enormously.

HOPE IT HELPS, PLEASE MARK AS BRAINLIEST