5
1- I visited china and went to china wall and about that I remember the nature of there and foods, and the people how which communicated with them , my friends.
2-Ancient China was one of the longest-lasting civilizations in the world, and it traces back over 4,000 years. It is well-known for creating the Great Wall, which kept outside invaders like the Mongols at bay.
6-the work they did
That's incorrect usage.
You'd say "I haven't seen him"
Explanation:
Baldwin talks of a "disease" which afflicts black Americans and can wreck race relations and creating a "rage in the blood" so he is using the "disease" as a metaphor for probably the rage that black Americans have for experiencing the inequalities of life in the US especially in the 1960's when the civil rights movement was so strong and segregation was so strongly practiced in the South still.