Answer: 1. Bawl 2. Quivering
Step-by-step explanation:
The bride began to bawl is the correct option because she was so upset about her wedding day so she was shouting or screaming.
She was also quivering and this is the second correct option because after that there goes ''with every sob'' and the quivering fits perfectly because it means that the person is shaking.
Both bawl and quivering are verbs that is showing the main situation in the sentence and what the subject(the bride) is doing and how does she feel.