Please pardon my english as it is not my primary language.

Below are some sentences that i have wrote. Those sentences in bold are those that i think are correct. Please help to indentify the correct sentences. Thanks in advance.
He told me yesterday that he wants me to get him a tie.He told me yesterday that he wanted me to get him a tie.
He wants me to get him a tie.He wanted me to get him a tie.
I went there yesterday, and the price is $50.
I went there yesterday, and the price was $50. He asked me whether it is possible to terminate his account.
He asked me whether it was possible to terminate his account.He asked me whether I am going to the party.
He asked me whether I was going to the party.