大家来帮帮几道英语题

1-5 dddac
6-10 ababb
11-15 abdcd
16-20 ddadc

c b d b c b a a b b d b d c d d a a d a可能有不对的啊，有点急

Except on official ____ such as formal reception, American society has a certain amount of informality.
d、occasions

—Will $200 ______?—I’m afraid not. We need at least 50 more dollars.
d、do

I am sorry to tell you that the book you asked for is not ______. They say it is sold out.
d、available

In a burst of anger she ______ that she would never want to see him again.
b、declared

Going on a ______ has become a fashion among many young girls who wish to keep slim.

c、diet

The two brothers have so ______ in common in their taste and manners that they are even unwilling to share the same room.
b、much

It was a pity that the great writer died ______ his works unfinished.
b、with

Michael is ______ a teacher. He often skips from one subject to a