A new feature will be added to past and future lessons over the next little while. It will help you gain practice constructing sentences by getting you to put words into the right order. The feature supports all four modes – Pinyin, Simplified, Traditional and English so find the mode that best suits you and see what you can make of it.
You can see a sample of what it looks like in the Vocabulary section of lesson 121 here. If you have any suggestions on how to improve this feature, or other features that you think will help in the learning process, please let me know.