Miss Gao runs with her dog in the park for about half an hour .(对for about half an hour 提问）
问题描述：
Miss Gao runs with her dog in the park for about half an hour .(对for about half an hour 提问）
答
how long does Miss Gao run with her dog in the park
答
how long does mrs gao run with her dog in the park ?
答
How long does Miss Gao run with her dog in the park?
答
半个小时