When Tina and other colleagues came back after lunch, they found that Natalie was still in a daze in the office.

Tina and other colleagues looked at each other and they were worried about Natalie. Tina took a deep breath and knocked at the door of Natalie's office.

"Rat-tat!"

Hearing the knock on the door, Natalie gathered her thoughts suddenly and replied, "Please come in!"

When Tina came in, she found Natalie's was haggard. Tina asked ...