—Where are the visitors from?—_______from South Africa.

The weather here is very cold, _______ in January and February.

—More ways to learn English better?—Maybe combine your language learning with          reading China Daily, New York Times and so on.

A man may usually be known by the books he reads _____ by the friends he keeps.

My uncle's house in the downtown area is much smaller than ours，but it is twice________expensive.