1.it's polite()you()so
a.of,to do
b.for,to do
c.of,saying
d.for,saying
2.no one is used()at,I think
a.to being laughed
b.to laugh
c.to be laughed
d.to laughing
3.shall we go outing this weekend?
oh,with all this work(),I don't konw if I'll have time to go out.
a.to do
b.doing
c.done
d.do
4.The best way to avoid()mistakes is to practise()more oftrn
a.to make;to speak b,making;speaking
c,to make;speaking d,making;to speak
5,Mum and I did all we could( )Dad from( ),
a,discourage;smioking b,to discourage;smoke
c,to discourage;smoking d,discouraging;smoking
6,He spent every minute he has ()his()English
a,improve;spoken b,to improve;speaking
c,to improve,spoken d,improving;spoken
7,Although he explained again and again,he couldn't make himself
a,understand b,understanding c,understood d,be understood
8Thousands of works of art,()the most famous paintings,were()during the war
a,included;missed b,including;missing
c,included;missing d,including;missed
9,Each of the students works hard at his or her lessons,(_)to go to university some day;
a,to hope b,hopes c,hoped d,hoping
10,Wing(_)electricity in many parts of the world
a,is widely used to produce b,is widely used to producing
c,widely used to produce d,widely used to producing
11,When(_)again whether he agreed to our plan,he just(_)silent,sitting still
a,asking;kept b,asked;remainged c,bejng asked,left d,was asded;stayed
12,(_)the ladder,get someone to hold it.
a When climbed b,When to climb c,When climbing d,When one climbs
13(_) in the chimney for five hours,the thief looked very pale and tired
a,Having been trapped b,being trapped
c,Trapping d,Hving trapped
14(_)in a white uniform,he looks more likd a cook than a doctor
a,Dressed b.To dress c,Dressing d,Having dressed
15,In order not to be disturbed, I spent thhree hours,(_)in my study.
a ,Locking b,To dress c.locked d,being locked