My eldest son, ______ work takes him all over the world, is in New York at the moment.

(单选题)Why are economists the lucky dog in the new technological re (单选题)What is the dark side mentioned in the text? (单选题)What is the best title for the text? (单选题)Why was it hard to criticize the Vermeer forgeries after Wor (单选题)Why didn’t experts expect the forgeries to look like Vermeer (单选题)Why did the art dealer admit that he had forged paintings? (单选题)What do we learn about the Southern Ocean? (单选题)What happens when sea levels rise in the Antarctic? (单选题)What does the passage say about king penguins? (单选题)What do we learn from the findings of a separate study?