got on the bus,I_____I had left my wallet at home.

105The waters of this great lake, which is also the world’s deepest, have been ____ by waste from a chemical factory

ve to wear special clothing, a helmetand a life jacket ____ your raft gets turned upside down or sinks.

03, figures showed that there were 840,000 HIV carriers and 80,000 AIDS patients in China, _____ it the worst-affected country in Asia next to India.

y doesn’t work hard enough at hislesson As for his intelligence, he has ______ he can possibly make use of