1) a) was 2) a) opened; 3) a) moved; 4) a) sent; 5) a) visited; 6) a) went; 7) a) returned; 8) a) devoted; 9) a) incorporated; 10) a) made; 11) a) patented; 12) a) established; 13) a) built; 14) a) continued; 15) a) registered; 16) a) signed; 17) a) decided; 18) a) died; 1). b) had been. 2) b) had opened. 3) b) had moved. 4) b) had sent. 5) b) had visited. 6) b) had gone. 7) b) had returned. 8). b) had devoted. 9). b) had incorporated. 10) b) had made. 11). b) had patented. 12) b) had established. 13) b) had built. 14) b) had continued. 15) b) had registered. 16) b) had signed. 17) b) had decided. 18) b) had died.