单项选择题

______ I hadn' t been so careless!

A．If
B．Useless
C．Only if
D．If only
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Thank you for your invitation. I am looking forward to ______ your hometown.
A．visiting
B．being visited
C．visit
D．visiting at
单项选择题
When he heard that his parents had been seriously ______ in the traffic accident, he burst into tears.
A．wounded
B．injured
C．damaged
D．hurt
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