2．―I'm terribly sorry，             I can't go hiking with you this Saturday．

―It's OK．We can go together next time．

A． so                     B．but                      C．and                        D．or

1．―What's the matter with you?

―I caught               bad cold and had to stay in               bed．

A．the：the                B．a；the                 C．a；a                    D．a；／