Select the option that contains a grammatical error in the underlined portion.
I thought the new teacher to be she, but I was not sure.
1
I thought the new teacher to be she, but I was not sure.
2
I thought the new teacher to be she, but I was not sure.
3
I thought the new teacher to be she, but I was not sure.
4
I thought the new teacher to be she, but I was not sure.