The following paragraph contains usage and mechanical errors. Correct the errors in the space provided within the passage. Sentences may contain more than one error or none.

(1) Group leaders must prepare the program agendum and should distribute it at least several days before the meeting. (2) They should also ensure that the group have a satisfactory place to meet. (3) A designated conference room or a suitable substitute. (4) If the meeting is a formal conference and has a number of people which are not acquainted leaders should place name cards on the table in front of each persons chair. (5) Having started the meeting, name cards make discussion easier. (6) Once the meeting has started, discussion leaders must keep it moving. (7) Each of the members have to assume the same responsibility. (8)

A group sometimes drifts off course into trivial and unrelated matters, therefore, leaders must guide them back to the central problem. (9) Though leaders must have kept the group process moving, they must often be careful about revealing their own position. (10) This has been of great importance to my colleagues and I. (11) We recognize that a high status person for example a company president, can cut off discussion by revealing their own view to clearly.