giúp vs ạ ----- Nội dung dịch tự động từ ảnh ----- Exercise 4. Read the passage and choose the correct answer A, C, C or D Our future house will be on the ocean. It will be surrounded by tall trees and blue sea. But we only have salt water in the ocean. We needs fresh water for (1) and for growing food (2) It is also too salty for watering plants. to make fresh water from salty water. We should be (5) farms.Ocean water is too salty (3). We must have the (4). not to waste water.