题干
—Excuse me, is this your ping-pong bat? —Yes, ______.
A：is it
B：it is
C：it
D：it isn't
答案(点此获取答案解析）
B
—Excuse me, is this your ping-pong bat? —Yes, ______.
A：is it
B：it is
C：it
D：it isn't
