Lesson 3 Where Are They?一、看图,根据首字母补全单词。1. b__________                        2. c__________     3. s__________                          4. d__________ 二、单项选择。(    )1. The crayons __________ in the schoolbag.A. is                     B. are                  C. am(    )2. What can you __________ in the classroom?A. see                     B. sees                  C. seeing(    )3. Danny is between the desk __________ the chair.A. to                      B. of                 C. and(    )4. — __________ are the books?— They are on the desks.A. What                  B. Where               C. Whose(    )5. This is my __________.A. blackboards            B. pen               C. a ruler三、根据图片和首字母提示写出表示方位的介词。1. These are my friends, Tom and Rose. Tom is b_________ Rose.2. Look! The ball is b___________ the two boxes. 3. These shoes are u_________ the bed. 答案一、1. blackboard  2. chair  3. schoolbag  4. desk二、1. B  2. A  3. C  4. B  5. B三、1. behind   2. between   3. under