Unit 8 Have you read Treasure Island yet? 同步练习一、单项填空1.-Will Jenny come tomorrow? Im not sure. She _ an hour ago without saying anything. A. has left B. left C. leave D. will leave 2. They have already _ here. Lets hurry to prepare.A. arrived B. reach C. arrived in D. get to 3. Excuse me,look at the sign NO PHOTOS! Sorry, I _it. A. dont see B. didnt see C. havent seenD. wont see 4. Thats a nice mobile