there ___[be] many signs on the wall. they ___[mean] different things.

问题描述:

there ___[be] many signs on the wall. they ___[mean] different things.

0there ___[be] many signs on the wall. they ___[m...

are..复数
mean 复数

there __are_[be] many signs on the wall.they __mean_[mean] different things.