Dear Mr. Bloggs,
Our records show that you have an outstanding balance dating back to October, 2009. Your October Involce was for ￡2, 820, 00 and we have yet to receive this payment. Please find a copy of the Involce enclosed.
If this amount has already been paid, please disregard this notice. Otherwise, please forward us this amount owed in full by December 1st, 2009. As our contract Indicates, we begin charging 5% interest for any outstanding balance after 30 days.
Thank you in advance for your cooperation. We hope to continue doing business with you in the future.
Sincerely,
Maria McPhee
Accountant
of Jane Smith Design Ltd.
Enclosure: Involce#23
JANE SMITH DESIGN Ltd
24 Durham Street - London W1F 8XH Tel: 020-7123 1234 Fax: 020-7123 1235
INVOICE
Invoice to:
BBC
For the attention of Joy Bloggs
Production Accountant
"New Horizons"
BBC Television Centre
Wood Lane, London W12 7RJ
Tel: 020 8743 6789
Invoice Date:
27/10/09
Invoice No: 23
Customer Order No: 450003456 
Registered office address: 1 Piltdown Green, London NW1 5DF
VAT Registration No: 123456789
What is the main purpose of the letter？
A．Requiring for paying a bill
B．Confirming of over-chargement
C．Complaining about outstanding balance
D．Discovering an invoice
How many percent of the people would be in favor of a shorter coffee-break and finishing earlier？
A．25%
B．30%
C．50%
D．55%
What is the lecture mainly about？
A．Provisions of the Homestead Act
B．How to construct a log cabin
C．Frontier homes in the West
D．Early construction materials
What is the award given by the people who have good suggestions？
A．To have a month holiday
B．To have an extra month's pay
C．To get a higher position in the company
D．To get another two months' pay
What is the deadline of Dr. Kathleen Wu submitting the reports on the operations and training programs for Blue & White Restaurants？
A．February 20
B．April 13
C．April 21
D．February 12
Why does a rock avalanche move faster than other types of rockslides？
A．The rock moves over a layer of compressed air.
B．The rainfall is heavy where avalanches occur.
C．The rock breaks apart as it moves downslope.
D．The angle of the slope is almost vertical.