完形填空。 Look at the picture of the twins' 1 2 are white and the windows are big. On one of the walls you can see 3 old photo of their family. Their 4 is American(美国人). She is a teacher 5 English. She is 6 a white hat. Behind her 7 their father. He 8 young(年轻的). The boy in the red coat is 9 brother. The twins are sitting 10 the floor. They look like their father and mother. (     )1. A. backpack (     )2. A. The wall (     )3. A. a (     )4. A. father (     )5. A. of (     )6. A. in (     )7. A. are (     )8. A. looks (     )9. A. his (     )10. A. in B. class B. A wall B. an B. mother B. in B. on B. be B. are B. her B. on C. room C. Walls C. in C. uncle C. with C. of C. am C. look C. their C. under D. family D. The walls D. two D. brother D. on D. at D. is D. am D. your D. behind