单项选择题

Do you know().

A．who writing is she to
B．who he is writing to
C．she is writing to whom
D．who is she writing to

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单项选择题
()is one of the world's most popular water sports.

A．Skating
B．Surfing
C．Baseball
D．Running
单项选择题
Hi, Bob! I can't find my history book. () you () it anywhere

A．Did; see
B．Do; see
C．Have; saw
D．Have; seen
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