7.D　marry 和 get married 都表短暂性，而be married 表状态，可延续。如:

They got married/married last year.

They have been married for 10 years.

6.C　有些动词或短语，如:understand,know,remember,marry,be worth,fit 用well 来修饰，表示程度。如:The shoes fit me well./I know Lucy very well.

5.C　 短语 after all 表示“毕竟”。

4.C　without being invited　表示“没有被邀请”。

3.B　trousers是复数，所以用代词 them,try them on。

2.A　pay money for sth./spend money on sth.如果用cost，则说How much did the gold watch cost?

1.B　一般情况下,反意疑问句是对主句进行提问,但I don't think,believe,suppose that… 例外，在这个句型中,否定词not 前移了,实际上是否定宾语从句,而且反意疑问句对宾语从句进行提问。

1.with lots of money　2.because of the pain　3.they had been　4.it matter　5.was gone/was missing/was lost

1.recognize　2.government　3.worth　4.theatre　5.Rehearse　6.invitation　7.valuable　8.continue　9.sight　10.describe　

1.necklace　2.diamond　3.jewelry　4.fingerprint　 5.footprint　6.recognize　7.precious　tinue　 9.franc　10.positive　11.pay back　12.besides　13.playwright　14.outline　15.dormitory　16.quality　 17.scary　18.bring back　19.mysterious　20.ten years of hard work