John: Hello everybody! Here are two memory tests. For the first test, Wendy will say two numbers. When she finishes, repeat the numbers after her. Here's the first number.

Wendy:9-7-5-4-7.（pause）

John: Write the number down now.（pause）

Next, the second number.

Wendy:4-3-1-8-6-2-6-2.（pause）

John: Now write it down.（pause）

Wendy will read the numbers again. Listen and check your answers.

Wendy:9-7-5-4-7.（pause）4-3-1-8-6-2-6-2.

John: How many numbers did you get right? Most people can remember about six or seven numbers for a short time.