20．--- Do you think Bob will attend the meeting this afternoon?　 --- ______．

　　　 A．I hope not　　　　　 B．I don’t hope so　　 C．I don’t think it　　 D．I hope he would

19．The committee asked for these suggestions to be ______ on paper, so that they might study them further．

　　　 A．brought down　　　 B．handed down　　　 C．laid down　　　　　　 D．put down

18．He is always ready to help others, seldom, ______, refusing them when they turn to him．

　　　 A．if never　　　　　　　 B．if ever　　　　　　　　 C．if not　　　　　　　　　 D．if any