This sentence is grammatically correct. It uses "that" to introduce the defining relative clause referring to "the amount" and "which" correctly for the non-defining relative clause related to "the check".
This option is incorrect. The word "what" should not be used here; "that" is the suitable relative pronoun.
This option is incorrect. The phrase "for which you filled out" is awkward and not commonly used.
This option is incorrect. The use of "wherein" is inappropriate in this context.
Therefore, the grammatically correct option is:
Could you give me the amount that you filled out in the check which was sent?
Is there any good show __________ television tonight? Select the most appropriate option to complete the above sentence.
Find the missing code:
L1#1O2~2, J2#2Q3~3, _______, F4#4U5~5, D5#5W6~6