Помогите с английским, пожалуйста. №2

Next August they … their 25th wedding anniversary.
1) are ceiebrating
2) have celebrated
3) will be celebrated
4) are celebrated

He came in and … the box carefully on the table.
1) lay
2) layed
3) laid
4) lied

Salmon was once a commonplace … in Scotland.
a. meal c. dish
b. food d. meals

The performance was quite a success … .
a. at last c. at the end
b. finally d. in the end

I am very content … your progress.
a. with c. about
b. at d. in