What do you think “anxious” ______?
---It's reported__________the new underground line has been completed.---Yes, but it hasn't been made clear ________ it's to be opened to traffic.
Not until ________did he leave.
I _________ in the countryside, but these days I________ in the city.
Foreigners always __________China with the Great Wall.
When it comes to __________ on living expenses, the family always become silent.