七年级首字母填空原创精华版练习一Carol and Susan are very good friends. They are in the s _1_ class at school and they often visit each others h_2_ at weekends (周末). Now they are b_3_ eight years old. Carols mother has got a new baby. Carol is very g_4_ to have a little sister. So she is always talking about her to Susan. At first she is very i_5_ in the new baby because she doesnt have any brothers or sisters. But after some time she begins toget tired of Carols endless talking (喋喋不休地谈论