—What will the weather be like tomorrow?—It__________ be rainy, cloudy or sunny, I’m not sure.
We have friends to help us fight against pollution, and trees are one of ________.
Now, people regard drinking tea ________ a culture more than a habit.
Our mother earth gives us ________ we need in our daily life.
Three bridges ________ over the river five years ago.
We are happy to see our city is developing ________ these years than before.