影响居民消费水平的因素很多。其中,__________是消费的基础和前提( )
The actress looked so charming in the beautiful Vera Wang dress that photographers took _______ pictures of her.
Our maths teacher set so difficult an examination problem ______ none of us worked out.
This is the second factory, ______ I used to work, many workers of______ still have a good relationship with me.
It’s impossible for him to escape ______ this time; he made such a big mistake.
The ______ look on the student’s face suggested that your ______ question made him ______.