北师大版小学升初中英语用适当的介词填空练习题一1.( )Look _ the picture, please.A. on B. at C. in2. ( ) Hes 75 years old. Hes _ old personA. a B. an C. the3. ( ) How _ is your father?A. old B. many C. much4. ( ) _ the boy watching TV?A. Am B. Is C. Are5.( ) A: Whats your mothers name? B: _ names Jane.A. She B. Shes c. Her6. ( ) What _ your brother do?A. are B. is C. does7. ( ) How old _ your sister?A. is B. do C. are