当你称呼李老师(男)时,应如何称呼?________.
—Hi, Lucy. Have you finished your homework yet?—No, just a half. I am really bored with so much homework.—_____
I didn’t have _____ to say, so I said _____.
—Have you _____ had dumplings?—No, not _____.
The shoes were worn out, what’s more, they aren’t worth _____.
—Hello! May I speak to Alice?—Sorry, she _____ Shanghai.