In the past several weeks, many cities in Northern China________from heavy fogs, causing great inconvenience to people.
all the animals I've ever had, these two dogs arc the most sensitive to the spoken word.
Studying Wendy's menu, I found that many of the items are similar toof McDonald's.
I made a promise to myself______ this year, my first year in high school, would be different.
No matter how bright a talker you are, there are times when it's bettersilent.
The development of industry has been_______ gradual process throughout _______ human existence, from stone tools to modern technology.