精选优质文档-倾情为你奉上初二完型填空专练（一）One Sunday morning, Millie and Amy went to Sunshine Park. They love to chat there. As usual, they sat _1_ a big tree. Suddenly, they heard a whistle (口哨) from the bushes (灌木丛) behind the tree. They turned around but could not see anything unusual. They were _2_.“Is _3_ there?” Millie asked. Nobody answered. They _4_ very carefully and heard the strange noise again. The two girls were very afraid. They ran away quickly. On their way, they met Andy.
