Can anyone help me review my SOP, PS and CV ? I will be applying for grad school for Fall 2021.

Can we book visa slot with one i20 and then change to other?

I have i20 from a few school, namely NCSU, ASU and others. And I am still waiting for i20 from TAMU. But TAMU is taking

Duolingo English Test

Are we allowed to use external mouse in the test? And is it compulsory to use passport for identification?

Review of yocket Premium

I am thinking of going for yocket Premium.Any feedback or suggestions?

Is gre required for these universities MS CS program?

University of Colorado Denver George Mason University Arizona State University