Question

To get the job stared,___ I need is your permission.

all that
all what
only that
only what
应该填哪个丫？

Answer 1

all that
这是一个定语从句问题，主句是all is your permission. 定语从句是 that I need. that代替all，这里由于引导词that在定语从句中做宾语，所以可以省略。而且省略出现的机会比不省略多。

Answer 2

all what I need

all that I need 也对