Supply the correct form of the word in brackets: We may as well go to the concert, (see) as we've already paid for the tickets

Supply the correct form of the word in brackets:
1. We may as well go to the concert, (see)___ as we've already paid for the tickets.
We were struck by the silent(grand)____of the sesert.
2. She was(terrible)___sorry not to have seen you last Saturday.