A put the verbs into the correct form of Active or Passive Voice.
1. They ___ the road all last week. (mend)

2. The new concert hall ___ by a Greek architect at the moment. (design)

3. The exhibition ___ already ___ by two million people. (see)

4. The critics the play good reviews yesterday. (give)

5. The population of the region ___ often ___ by floods (affect).

6. Eruption of this volcano ___ in the 11th century. (happen)​