—Have you heard of the terrible earthquake in China?—Yes, ________ news came as ________ shock to me.
________ made the school proud was ________ more than 90% of the students had been admitted to key universities.
—You can't imagine ________ fantastic fun online chatting is.—Really?But it may cause a lot of trouble sometimes.
It is pretty well understood ________ controls the flow of carbon dioxide in and out the atmosphere today.
A plan has been put forward ________ more graduates should go to work in the country.
After three hours'climbing,they reached ________ they thought was the place they'd been dreaming of.