问题
Letterboxes are much more _____in the UK than in the US, where most people have a mailbox instead. [ ]
A: common
B: normal
C: ordinary
D: usual
B: normal
C: ordinary
D: usual
正确答案是：
同类题型
He is a deep thinker _____ opinions are worth much.
_________ can cormorants stay under the water–_________ up to two minutes.
What did your parents think about your decision?— They always let me do _______ I think I should.
China’s efforts on food production and safety will after the new food law is introduced.