_______,when Marx was already _______,he found it was important to study the situation in Russia, so he began to learn Russian.
“I can’t stop worrying about my exam tomorrow.” “__________”
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 ____.