请把下面句子改成写被动语态的句子。 1. People designed the first computer in the 1940s. __________________________________ 2. Computers solve a lot of problems for us. __________________________________ 3. Most schools in China teach Computer. _______________________________ 4. People order a lot of things on the Internet now. __________________________________ 5. At present people use computers as a tool. _________________________________ 6. A computer stores much information. _______________________________ 7. People didn't use computers widely 50 years ago. _________________________________ 8. I didn't know who designed the first computer. _________________________________ 9. Everyday people use computers. _____________________________________ 10. The school bought many computers yesterday. ______________________________________ |