In Britain ______are all painted red.
#27840
A
letter boxes
B
letters boxes
C
letter box
D
letters box
推荐题目
I want to put the book on the shelf. Can you make____ for it?
#29718
A
a space
B
some spaces
C
some more rooms
D
some space
I don’t like ______. Please take it away. 
#29451
A
fruits
B
vegetables
C
drinks
D
meat