问题：
[单选题] Which of the following grammar activities is most communicative
A、Asking the students to read and correct the mistakes in the sentences.
B、Asking the students to tell the differences between two pictures in groups.
C、Asking the students to make sentences with the given words.
D、Asking the students to complete the translation exercises.
参考答案：
B、Asking the students to tell the differences between two pictures in groups.
● 参考解析
