1 . I'm sorry to ________ your precious time, but I really want to talk with you about the pet problem nowadays.

A．refuse

B．betray

C．occupy

D．tease

2 . ----We ____ at the station so early. The train leaves at 9:20.
---- I thought it would go at 8:00, and you didn’t refuse to set off so early.

A．needn’t have arrived

B．didn’t have to arrive

C．shouldn’t have arrived

D．mustn’t arrive