February 2019 1 16 Report
In 1799 sir george cayley ... the first scientific design for a fixed wing aircraft.

a. has been presented
b. was presenting
c. has presented
d. had presented
e. presented


tolong penjelasannya ya..
More Questions From This User See All

Life Enjoy

" Life is not a problem to be solved but a reality to be experienced! "

Get in touch

Social

© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.