We _______ each other since I came to Changsha, but we often send emails.
haven’t seen
didn’t see
don’t see
—What does the lady look like? —_____
---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 ______________.