单项选择题
That is one of those books that（）worth reading.
A．is B．are C．has D．have
单项选择题 Thank you very much.Not at all. I was（）glad to help.
单项选择题 I know the day breaks now,（）the birds are singing.
单项选择题 The news（）to Mount Tai during the summer holidays delighted us.
