1. We consider this incentive an excellent opportunity for our customers to increase their profit margin, and therefore ________ the use of this discount privilege whenever possible.

encouraged
encourage
encourages
be encourage

2. Invoices _____ payable within 30 days of receipt, with a 2% discount available if your payment is remitted within ten (10) days of receipt.

is
been
be
are

3. I would like to take this opportunity to briefly set forth our terms and conditions for ________ an open account with our firm.

maintaining
maintain
maintained
maintains

4. As one of the leaders in this industry, we can ______ you that our products and our services will not disappoint you.

assuring
assures
assure
assured

5. If you decide to attend one of these courses, please ________ your office manager and he will make the necessary arrangements.

advises
advising
advised
advise

6. The courses and their corresponding registration dates are ________ on the employee bulletin board for your review.

listed
list
been listed
lists

7. We encourage our personnel to take advantage of _________ courses that are available in this vicinity, in order to improve their skills and learn new skills in related areas.