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.
答
0there ___[be] many signs on the wall. they ___[m...
答
are..复数
mean 复数
答
there __are_[be] many signs on the wall.they __mean_[mean] different things.