根据首字母填空I thank Beijing o_ is very interesting

根据首字母填空I thank Beijing o_ is very interesting
不止这一个,还有：根据首字母填空1.I thank Beijing o_ is very interesting 2.When is your school t_ 3.I can l_ a lot about Chinese history 4.Can you b_ some things to school?5.My hat is on the f_ 6.There are fire red s_ in our national flag.