Ten years have passed () he moved to live in the South.
A: from
B: when
C: since
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-Excuse me, sir. Where is the post office? -().
A: You can't ask me.
B: Pardon? I have no idea
C: Please don't say so
D: Sorry I don't know, but you can ask the man over there
() students are learning English in China now.
A: Millions of
B: several millions
C: Million of
改变窗口大小可以按左右、上下方向拖动,但不可以按对角线方向拖动。()