改为一般疑问句
1. There are some subways in the city.
________ ________ ________ subways in the city?
2. We must look and listen careful at the museum.
________ ________ look and listen careful at the museum?
3. Candy exercised a lot last summer holiday.
________ candy ________ a lot last summer holiday?
4. A small cloud has a little water.
________ a small cloud ________ a little water?
5. The Smith were taking the train home this time yesterday.
________ the Smith ________ the train home this time yesterday?