sometimes
Food sometimes gets poisoned with harmful
阅读理解。 Food sometimes gets poisoned with harmful things. A person who eats such food can get an illness called food poisoning. Food poisoning is usually not serious, but some types are deadly, The
It's sometimes reported that strange objects have
题目 It's sometimes reported that strange objects have been seen high up in the sky. These unidentified(未确认的) flying objects - UFOs have made a lot of people interested. Some of the reports about
