单项选择题
I'm very grateful for your help and hope to do something for you （） in the future.
A．in exchange B．instead C．in return D．in particular
单项选择题 Unfortunately, the package I was expecting was （） to the wrong address.
单项选择题 Diana felt very much upset at （） to the party as she had longed to go for a long time.
单项选择题 Last week I wrote to the hotel to book a room, but they （） yet.
