单项选择题

______more careful, such spelling mistakes might have been avoided.

A．You had been
B．You have been
C．Had you been
D．Have you been

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单项选择题

A. How about her
B. What happened
C. I believe he
D. poor Alan
E. I can imagine
F. I guess something
G. ls she fine now
H. I don’t know

单项选择题

A. How about her
B. What happened
C. I believe he
D. poor Alan
E. I can imagine
F. I guess something
G. ls she fine now
H. I don’t know