began in 1924 and began to define the relationship between physical working conditions san worker productivity.
举一反三
- Peter __ start working when it began to rain
- Though it began to rain, they kept on __ in the fields. A: worked B: to work C: working D: work
- The farewell party____ the song “The more we get together.” A: began with B: began in C: began at D: began for
- What war began between the United States and the Soviet Union after World War II?
- After several discussions between the members of the committee, a new plan of action began to take shape.