The room was dark，_________ I turned on the lights．

They are reading ________lesson on Page ________．

Mo Yan, a famous Chinese writer,won the Nobel Prize for literature at the end of the year 2012.We learn that successthe person with a never-give-up attitude.

Nearly _______of the earth___covered by sea.

If he takes on this work, he will have no choice but ______ an even greater challenge.＿