Подчеркните в каждом предложении глагол-сказуемое и определите его видовременную форму и залог.
1. In this museum one can see articles dating back to the 18/th centry.
2. They will be glad to see you in this museum.
3. I have been show the photo of this castle.
4. The construction of this bridge was being completed when the commission arrived.