Tom’s teacher kept on telling him to practise speaking English, but _______ didn’t work.

(2011·江西高考)Why don't you bring ______to his attention that you're too ill to work on?

I was told that the water of the Ganjiang River is much cleaner than ____ of the Xiangjiang River.

In his lecture, the professor referred to the belief, in contrast to all other countries, _____ the elderly are wise, _____ is particularly dominant(占优势的) in the Chinese culture．

Berners-Lee made       possible for everyone to use the Internet, not just universities and the army.