20．I will appreciate it very much ________ you could change your plan a little bit to make it more workable．

A．if 　　　　　　　　　　　　 B．that 　　　　　　　 　　　 C．whether　　　　　 　　　 D．unless

19．On the contrary, I think it is John, _________ you, _________ to blame．

A．more than; are 　　　 　　　 B．less than; who are 　 C．rather than; that is 　 D．rather than; is

18．_______ no need to worry about his safety, because he is always careful．

　　　 A．What’s 　　　　　　　　 B．It’s 　　　　　　　　 　　　 C．There’s 　　　　　 　　　 D．Which’s

17．--- This store has such high prices．

--- I agree．Never again __________ here．

　　　 A．I will shop　　　　　　　 B．I do shop　　　　 　　　 C．will I shop　　　　　　　 　　 D．shop I do

16．--- I think I’ll give Bob a ring．

--- You _______．You haven’t been in touch with him for ages．

A．will　　　　　　　　　　　　 B．May　　　　　　　　　　　 C．have to　　　　　　 　　　 D．should