who can tell me if there are errors in this sentence and what are the mistakes

Writing
Tutor: None Selected Time limit: 1 Day

The members of commissioning trust should be held responsible of the waiting lists in the National Health Service. The main reason for this is because they calculate all activities running in the NHS.

Jan 1st, 2015

No errors. I have read thoroughly.  Trust me. I hold MA in English. 

Please choose me best answer if it helps you!

Jan 1st, 2015

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Jan 1st, 2015
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Jan 1st, 2015
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