The speaker implies the workweek in England in early 1800s（）
A. was from Sunday to Friday
B. was from Monday to Friday
C. was from Monday to Saturday
D. was from Monday to Thursday
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What is NOT a key element of a balanced meal（）
A. Proteins.
B. Fats.
C. Vitamins.
D. Sugar.
What do we learn from the use of the American national flag（）
A. There has been a lot of controversy over the use of flag.
B. The best athletes can wear uniforms with the design of the flag.
C. There are precise regulations and customs to be followed.
D. Americans can print the flag on their cushions or handkerchiefs.
How should the American national flag be displayed at an unveiling ceremony（）
A. It should be attached to the status.
B. It should be hung from the top of the monument.
C. It should be spread over the object to be unveiled.
D. It should be carried high up in the air.
The word "weekend" came into being in English in about（）
A. 1800s
B. 1850s
C. 1920s
D. 1930s
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