有关过去分词的语法题1 We are pleased to see the problem _____ so quick

有关过去分词的语法题
1 We are pleased to see the problem _____ so quickly.
A settled B having been settled
C be settled D settleing
2 Mrs.Brown was much disappointed to see the washing machine she had had _______ went wrong again.
A it B it repaired
C repaired D to be repaired
3 It is wise to have some money ______ for old age.
A put away B keep up
C give away D laid up
4 I don't want the children _____ out in such weather.
A taken B to take
C taken D taking
5 The murderer was brought in ,with his hands _____ behind his back.
A being B having tied
C to be tied D tied
我好模糊哦,还有,我老分不清
TO BE DONE 和BEING DONE ,虽然我知道一个表示将要完成,一个是正在进行,可做题目的时候,还是懵的.那些题目特别是第2题麻烦翻译一下,第3题就讲一下各个词组的意思就行了.大家有什么好的学英语语法的诀窍,我知道我的要求有点多,可只要你能回答一个也可以的!

1A 2C 3A 5D 4题答案有误
1题所选项做补语补充说明问题是被解决的而且我很高兴说明解决动作已完成
2题所选项做定语从句的谓语
3题所选项做补语意思是存钱
5题所选项做补语手是被捆着的且捆的动作已完成
the building to be built in 2010 will be the biggest one in our city.
the building being built now will be the biggest one in our city.关键是根据意思判断时态