课时作业(二) Websites & Virtual Reality Ⅰ.单词拼写 1.Mr Green, I'm not good at English.Could you give me some________(建议)on English study?www.21-cn-jy.com 2.I asked him to help me with my work, but he just________(拒绝)me. 3.The company has a________(网络)of shops all over the country. 4. Many people have benefited from the________(工程). 5.This old man is a famous________(核能的) physicist. 6.After walking about three hours, they at last reached their________(..