# 03D Sentence Review

A product description should help someone imagine a useful activity, rather than simply introduce a collection of impressive technical features.
There is a short introduction on the home page, and there are several lessons that visitors can explore without creating an account.
The main value is the connection between understanding an expression and using it to complete a familiar task.
We explain the available functions with ordinary verbs such as read, listen, save, review, and practice.
Imagine that a new visitor opens the learning website during a short break and has only fifteen minutes to study.
There is a brief goal above each lesson, and a sample sentence shows the kind of expression the visitor will practice.
The visitor can then move to a short exercise and try to produce a complete sentence without looking at the original.
We can evaluate the product by asking whether the visitor understands the next step and finds the material useful.
I have a few minutes to study, but I do not know which lesson to choose or what the website offers.
Do I need to create an account before I can read the passage and look at the vocabulary explanations?
What should I be able to do after the lesson, apart from recognizing a list of new English words?
That sounds useful; is there an exercise where I can try to say the same thing about my own project?