*turn in(1)睡觉e.g. I turned in late last night. (=went to bed)(2)turn sb. in 把（某人）交给警方，使自首e.g. He turned the thief in just now. 他刚把贼交给警察。(3)turn sth. in 退还，交还；上交，
*turn in(1)睡觉e.g. I turned in late last night. (=went to bed)(2)turn sb. in 把（某人）交给警方，使自首e.g. He turned the thief in just now. 他刚把贼交给警察。(3)turn sth. in 退还，交还；上交，
One sunny Sunday in Chicago, 。。。1. When did the classmates join in their high school reunion? B) On Friday. 2. Which is true about Nathan’s family’s business?D) It is one
