--What about the protection? ---Let’s keep the surface ____ dirty by putting a cover over it.
#4689
A
far from
B
free from
C
apart from
D
away from
推荐题目
He regards that book _____ one of the worst that he’s _____ read. 
#4813
A
to be, ever
B
to be, never
C
as, ever
D
as, never
His suggestion is worth_____.
#4687
A
consider
B
considered
C
to consider
D
considering