“One blue represents the economy growing. The other blue is the blue sky. That means we have to ______ development and environmental protection,” Wang Zhongbing said.
In fact the Swede did not understand the three questions ____ were asked in French.
Have you read the book ____ I lent to you?
Finally, the thief handed over everything ____ he had stolen to the police.
The foreign guests, ____ were government officials, were warmly welcomed at the airport.
This is the very letter ____came last night.