Check yourself: What are enzymes?
Type the missing words, put the steps in order and write a short answer. No multiple choice: you have to remember it. Vietnamese help for every question.
Multiple choice is easy to guess. Here you type the answer yourself, because remembering it is what helps you in the exam.
Answer every question. If you are wrong you can try again or see the answer, and the score counts your first try.
How to use it
- Answer all the questions without opening the video.
- If a gap answer is almost right, check the spelling.
- Use the ▲ ▼ buttons to put the steps in order, then press Check the order.