--____ can we learn from the film Frozen. – True love, I think.A. Who B. Which C. What
---What do you think of Beijing Opera? ---- .
-- __________ you __________ breakfast? -- Yes, I had it at 6:30.
-- Sally, you must introduce your friend ___________ me. -- OK, I will.
I like classical music, because it sounds ______________.
She has been to Shanghai, has she?