A. respectable    B. respected    C. respective    D. respectful

[答案]D. respectful.

[注释]respectable(=deserving respect)值得尊敬的,品行端正的。respectful(=showing respect to)有礼貌的，表示尊敬的。Respective各个的。respected尊敬的。Respecting prep.(=relating to; concerned with)关于，说到。

18. We could see that he was trying to _____ his own responsibility for the delay, instead of accepting his fault.

A. run over    B. smooth over    C. pass off    D. turn down

[答案]B. smooth over.

[注释]smooth over(=make smooth, put right, balliate)使平息，使恢复正常的，掩饰：1)I will try to smooth their quarrel over.(我将设法平息他们的争吵。) 2)Don´t try to smooth over your fault.（不要设法掩饰你的过错。）
run over 详见Ⅲ.145,146.注释；pass off详见Ⅲ.126.注释；turn down详见Ⅲ.180,181.注释.

19. Glemp´s heroic flight into space entitled him _____ a place in history.

 A. for    B. with    C. to    D. of

[答案]C. to.

[注释]entitle sb. to sth.(=give a right to)给予权利： 1)He is entitled to special treatment because of his rank(由于他的级别他有权享受特殊待遇。) 2) Officers are entitled to travel first class.（军官们有权乘头等车旅行。）

20. He´s _____ drink and never does a stroke of work.

A. gone to    B. taken to    C. taken up    D. gone for

[答案]B. taken to.

[注释]take to养成（某种习惯）。A stroke of一件。本题译文：他以成了酒徒，从来没有干过一件工作。