He still remembers the place ______ we visited last year?
The gap between rural and urban education in China is widening, and education is the key to _____ rural problems.
The goods bought on line are _________ than those bought in stores.
Some Australian Aborigines still live in a similar way to their ancestors, while ______ live in cities, towns and the country in the same way _____ their fellow Australians.
The fleet made several expeditions _______ the exploration was stopped.
The Tibetans have lived in the Himalayas for centuries and have adjusted to the conditions _________.