The practice of tipping became formalized across the United States in _______.
A: the 1930s
B: the 1940s
C: the 1950s
D: the 1960s
A: the 1930s
B: the 1940s
C: the 1950s
D: the 1960s
举一反三
- The world's first electronic computer was born in ____. A: 1940s B: 1950s C: 1960s D: 1970s
- The Civil Rights Movement took place in the ____. A: 1920s and 1930s B: 1930s and 1940s C: 1940s and 1950s D: 1950s and 1960s
- ?In ________, my grandfather joined the Red Army.: 1930s’|1930’s|the 1930s’|the 1930’s
- In ________, my grandfather joined the Red Army. A: the 1930s’ B: 1930’s C: 1930s’ D: the 1930’s
- 30. This took place in ___________. A: a 1930’s B: 1930s C: the 1930s’ D: the 1930s