—What would you like to say to your ________ before leaving school?—I’d like to say “Thank you very much! I’ve learnt a lot from you in the past three years.”

– Why do you get up so early in the morning, Lingling?-- I generally make it a       to be up by 7 to read English.

 I listened to Professor Chen-Ning Franklin Yang’s lecture about his study and physics, but I failed to get its key ______ .

--- Can you play           ?     --- No, I can’t. But I can play           .

—What vegetables do you like?—______.