“In this part of the test, I am going to show you two photographs. I would like you to talk about them for about a minute and also answer a question about your partner’s photographs”. No matter which official B2 exam your students are taking, they are likely going to come across a task like this.
If we refer to the GSE, students at this stage “can describe objects, possessions and products in detail, including their characteristics and special features” (59) and “justify and sustain views clearly by providing relevant explanations and arguments” (60). So if they are at the right level there is no need to press the panic button: your students are ready to do this.