Meals can be served______.
A. in the dining-room from 7:30 a.m. to 9:15 p. m.
B. in the dining-room at 6:00 p. m.
C. outside the room at 3:00 p. m.
D. in rooms at 9:00 p.m.
The underlined word "involved" means______.
A. have something to do with
B. lose one's temper
C. pull the plug
D. complain about his action
【B2】
A. told
B. invited
C. visited
D. sent
【B15】
A. said
B. explained
C. apologized
D. told