Помогите сможете только упражнение 3,4

3 1) is being done 2)will have been done 3) will have been done 4)had been done 5)hasnt been done 6)has been ...done 7)was being done 8)was done 9)was being done
4 1)was opened 2)was built 3)is limited 4)are not encouraged 5)is served 6)is situated 7)has been 8)have already been 9)is planned