Fill in the blank with one of the above idioms.Chan ge its form if necessary. 1.The m ovie was popula mostly __ there were two famou s actors in it. 2. Before there were cars people __ on horses or on foot. 3.How long has this pr oduc t been __ ?

## Step 1<br />The first sentence is about the movie's popularity due to the presence of two famous actors. The idiom "the more the merrier" fits this context perfectly. This idiom means that the more people there are, the more enjoyable the event will be. In this case, the more famous actors there are, the more popular the movie will be.<br /><br />## Step 2<br />The second sentence is about how people traveled before cars were invented. The idiom "back in the day" fits this context perfectly. This idiom refers to a time in the past, often used to describe a time when things were different from today. In this case, it refers to the time when people traveled on horses or on foot.<br /><br />## Step 3<br />The third sentence is about the duration of a product's existence. The idiom "on the market" fits this context perfectly. This idiom means that a product is available for sale. In this case, it refers to the time a product has been available for sale.