Only two sentences for one lesson
Hello, in the Activity 1, Lesson 3 of 6 I had nothing in the whole lesson except two sentences.
あしたべんきょうします。 (I will study tomorrow).
あさってべんきょうします。 (I will study in 2 days).
They appeared over 10 times total. This is reported by others in other lessons. Is the repetition of the course a glitch?