The (1) usually takes place in a church or (2). After the ceremony, the couple and their go to the (4) , where they drink champagne and eat wedding cake. Later on, at the wedding meal, the best friend of the groom makes a (5) . The married couple often leave the party early to go on their (6) .

"Usually takes place in a church" suggests that the word missing in (1) is "wedding." In many cultures, weddings are traditionally held in a church as a sacred and meaningful location to exchange vows.

The word missing in (2) would likely be "venue" or "location," as it refers to a place where the wedding ceremony takes place other than a church. This can include places like gardens, beaches, or even someone's home.

After the ceremony, the couple and their guests go to the (4) to celebrate. By mentioning drinking champagne and eating wedding cake, we can infer that the missing word in (4) is "reception." A wedding reception is a gathering where the couple and their guests have food, drinks, and enjoy each other's company.

The best friend of the groom making a (5) suggests that there is a speech involved. The missing word here is "toast." At wedding receptions, it is common for friends or family members to give a toast to congratulate the newlyweds and express their well wishes for their future together.

When the text mentions the married couple leaving the party early to go on their (6), it indicates that they are going on a trip or vacation. The missing word here is "honeymoon." A honeymoon is a special vacation taken by the newlywed couple after their wedding to relax and celebrate their marriage.

To summarize,
(1) Usually takes place in a church or a (wedding).
(2) Usually takes place in a church or a (venue/location).
After the ceremony, the couple and their guests go to the (reception), where they drink champagne and eat wedding cake.
Later on, at the wedding meal, the best friend of the groom makes a (toast) to honor the couple.
The married couple often leave the party early to go on their (honeymoon).