—Where are we going for the National Day,the mountains or the sea?— Either will be fine with me.
We hadn’t planned to meet. We met ________ chance.
-----How do you like the plan? ------______.
We should try our best to ______ those people after the disaster.
The happy news quickly ______ through the whole village.
The government has to close those small factories to prevent the water of the river ______.