Question 1 [514692]: You went back to your high school after many years. It wasn't the same as before. (it/ change/ a lot)
ð It had changed a lot
Question 2 [514693]: I invited Linh to the party, but she couldn't come. (she/have/ another arrangement)
Question 3 (514694]: You went to the football match last night. You got to the match late. (the football match/ already/ begin)