1A. Is this the first time to eat sushi? <br/>1B. Is this the first time you have eaten sushi? <br/>I think that 1A is incorrect but 1B is correct. <br/><br/>2A. This is my first time to visit China. <br/>2B. This is my first visit to China. <br/>I think that 2A is incorrect but 2B is correct. <br/><br/>Thanks!