adj.
1) ~ to + inf. (it was ~ to watch them perform)
2) ~ that + clause (it was ~ that she was able to solve the problem so quickly)
adj.
1) ~ to + inf. (it was ~ to watch them perform)
2) ~ that + clause (it was ~ that she was able to solve the problem so quickly)
The Bbi combinatory dictionary of English, a guide to word combinations. Комбинаторный словарь английского языка Bbi. Руководство по словосочетаниям. 2012