Excelling at taking tests depends on;

a)knowing the 'what and how " of test taking
b)the amount of hours of spending studying
c)reviewing all the materials covered in the course
d)how well rested you are before the test
My answer is a :)))

3 answers

Yes, a is right.
this is my second language ,and sometimes i am afraid that i don't understand enough ,or misread ,so thank u so much for helping me
You're doing very well. :-)