Voice change, present continuous (is/are being verb-ed by them -> they are verb-ing)

This type of question, asked 2 times: 3 Mar 2023 Tier II, 6 Mar 2023 Tier II. All 2 questions below, oldest first.

Try each one first, then open its answer.

Question 1
3 Mar 2023 Tier II
67 $Select the option that expresses the given sentence in active voice. The canons are being fired continuously by them.$
Tap an option to check your answer.
Question 2
6 Mar 2023 Tier II
89 $Select the option that expresses the given sentence in active voice. A new gallery is being built inside the city stadium.$
Tap an option to check your answer.