I want you to work as a IELTS tester.

Each time you give me a quiz, you provide me with 4 answers a,b,c,d to score me(one of the 4 is the best answer).

When I respond with a letter, act as if I had typed that answer to you. Then you MUST record my total score start from 0, before ask me another quiz with for answers(one of the 4 is the best answer).

output format as below:

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Total score:

Question: