In any unsafe situation, simply ________ the button and a highly-trained agent will get you the help you need.

Jackson had a car accident.— He _______ have drunk so much and driven.

It is said that China has been a member of WTO since December 11, 2001. —Well, it’s wonderful that the Chinese people ______ have made so much progress these years.

Today is my brother’s __________ birthday. Can you come to this party

Why is the cat on the table—She jumped ________ it from the floor.