To telephone him, you will have to ________his number in your phone book.

A．... but Rudolf found from the old man’s expression that he was not serious.
B．... but Rudolf’s expression showed the old man that he was only joking.
C．... but the old man’s calm expression convinced Rudolf that he was not joking.
D．... but Rudolf looked peaceful, so the old man was sure that he meant what he said.

A．Laura deserved whatever her parents did for her.
B．Laura was never satisfied with whatever her parents did for her.
C．Laura was grateful to her parents for what her parents had done for her.
D．Laura was too greedy a child to appreciate what her parents had done for her.