“What do you want to be?” asked Mrs. Crawford. “Oh, I ________ president,” said the boy, with a smile.
He insisted that he __________ and that he ________ nothing wrong.
---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.