---Would you like to go to the amusement park?----If Jack does, __________.
Which of the following sentence is right? I wonder _________.
Nowadays many people set up their own Blogs on the Internet, _______ they can express themselves freely or communicate with others.
She was so angry at he was doing she walked out, and closed the door heavily behind her.
Great changes __ in the city in the past 20 years, and a lot of factories ____.
—Mr. Smith has decided to his bad habit of smoking.—That’s good news. I hope he can do it.