In the author’s opinion, the four books ______.

(单选题)The immersed tunnel of Hongkong-Zhuhai-Macau Bridge is 6.7 k (单选题)If the weather ________better last weekend, we would have go (单选题)Chongyang Festival, ______ is also known as the Double Ninth (单选题)She had a feeling that she already knew ______ this conversa (单选题)To be ______, they have to think about the future and deal w (单选题)______ you are 18 years old, hopefully you can become more i (单选题)—I have an appointment with Jane.—Wait a moment. She ______ (单选题)In addition to a healthy diet, you also need regular exercis (单选题)He is going to visit ______ university which is located in _ (单选题)What is the end of the story?