完形填空. It's a fine morning. There __ 1 __ many people in the park. What are they __ 2 __ in the park? Some __ 3 __ are playing games. Some __ 4 __ are walking __ 5 __ the lake. Some boys are __ 6 __ basketball. Two girls are __ 7 __ a storybook. What __ 8 __ those men? They're __ 9 __ tea under a big tree. Look! Two cats are __ 10 __ the tree. There are some birds in the tree. They want to catch the birds! (     ) 1. A. is (     ) 2. A. to do (     ) 3. A. boy (     ) 4. A. man (     ) 5. A. on (     ) 6. A. play (     ) 7. A. seeing (     ) 8. A. about (     ) 9. A. eating (     ) 10. A. climbing (爬) B. are B. do B. child B. woman B. near B. singing B. looking B. at B. drinking B. looking C. be C. doing C. girl C. men C. under C. doing C. reading C. for C. putting on C. running D. have D. making D. children D. lady D. with D. playing D. watching D. with D. making D. flying