What idea in the reader infer about why the changing tide pattern puzzled Mary Leakey's team?

1. What idea in the reader infer about why the changing tide pattern puzzled Mary Leakey's team?
A. The team was not used to working near the ocean.
B. The team had never seen a tide pattern like this before.
C. The team was not familiar with the area.
D. The team was not used to working in such hot weather.
2. Based on the section "Living By The Tides," what can the reader infer about the people who lived on the island?
A. They relied on the tides to help them find food.
B. They preferred to live near the water.
C. They wanted to be isolated from other people.
D. They settled on the island to avoid the mainland.
3. Why did the islanders most likely construct the drainage ditches on the rock?
A. To help them catch fish.
B. To help them catch rainwater.
C. To help them catch shellfish.
D. To help them catch crabs.
4. What can the reader infer about the islanders' use of the island?
A. The islanders used the island for farming.
B. The islanders used the island for fishing.
C. The islanders used the island for hunting.
D. The islanders used the island for trading.