Which reaction does NOT give tert-butylbenzene?
1. benzene + (CH3)3 CCl/ALCl3    3.benzene + (CH3)3 CH/AlCL3
                   
2. benzene + (CH3)2C=CH/H2SO4    4. benzene + (CH3)3 COH/H2SO4

I'm no chemist, but I'm a good googler.
Document http://shw.hkcampus.net/~shw-hks1/aromaQA.doc suggests that
number 1, benzene + (CH3)3 CC1 / ALCl3 produces tert-butylbenzene, and
that the presence of COH strongly deactivates that reaction.  Based on
this, I would say your answer is number 4.