an expression people use when trying something they are not sure will be successful._______
举一反三
- something people say when they are not sure if something will be a problem ._________
- an expression people use when they feel bad about or regret something._____________
- Expression that you can not use to greet people is .（ ）
- More and more young people are trying to do something _______ the old.
- In Para. 4, “organizational tools” are _______. A: tools that people use to calculate(计算) numbers B: tools that help people plan and/or arrange so that something is successful or effective C: tools used to manage a group of people who are doing something D: tools used in schools to help students share their personal interests