in / by / at / to / on / for

1 I'm longing Christmas.
2 He accused the boy lying.
3 Few English people are good Languages
4 The rent is to be paid advance.
5 Most Swedes earn average about 15,000 kronor a month.
6 I'll overlook it this time, but please try to be more polite future.
7 The tomb was discovered accident.

Correct answers...