The first successful space walk in 2013 is an important historical________in Chinese history.
He __articles for our wall-newspaper these three years, and he __about forty articles.
The children __very quiet;I wonder what they __up to.
Jim talked for about half an hour yesterday. Never__ him talk so much.
— __ Betty this morning? — Not yet, but she is sure to be here before noon.
— Are you a visitor here? — That’s right. I__round the world and now my dream of coming to China__true.