Back Help How to use Grammar exercises Question Read the English question. Click Enter Answer to write your answer in Chinese in the pop-up Answer Form window. Hint 1 Click Hint 1 if you need help with the question. Hint 2 Click Hint 2 for further help with the question Answer Once you have thought about the correct response click Answer to check the correct version. You can use the pop-up Answer Form window to make further notes Listen Click Listen to hear the answer spoken. Comments Click Comments for explanations of the grammar points used in the answers. Index Click Index to go to other questions in the question list for this lesson.