填空题 Directions: The following is the tips for saving gas. After reading it, you are required to complete the outline below it (No.46 through No.50). You should write your answers briefly (in no more than 3 words) on the Answer Sheet correspondingly.
In business, many places adopt a credit system, which dates back to ancient times. At present, purchases can be made by using credit cards. They fall into two categories: one has limited use, while the other is accepted almost everywhere. Usually the application has to be made at a bank.
Once the customer starts using the card, he/she will be provided with a monthly statement of purchases by the credit company. He/She is required to pay one quarter to half of his/her credit every month.
With a card, it is not necessary to save up money before an actual purchase. If the card is lost, its owner is protected. A regular and complete list of purchase received from the credit company helps the owner to remember the time and place of his/her purchases.
But with the card, the owner is tempted to overspend his/her money. If this is the case, it becomes increasingly difficult for the user to keep up with the required payments, which will result in the credit card being cancelled by the credit company.
Credit Card

Application: be approved by {{U}} {{U}} 1 {{/U}} {{/U}}.
Be provided monthly with: {{U}} {{U}} 2 {{/U}} {{/U}}.
Advantages offered: 1. unnecessary to {{U}} {{U}} 3 {{/U}} {{/U}}money in advance;
2. to be protected if lost.
Potential disadvantage: 1. spending one's money {{U}} {{U}} 4 {{/U}} {{/U}};
2. cancellation of {{U}} {{U}} 5 {{/U}} {{/U}}due to overspending.