registers

The sentence structure is （）.

In terms of the place of articulation, the following sounds [t][d][s][z][n] share the feature of （）.

As modern linguistics aims to describe and analyze the language people actually use, and not to lay down rules for "correct" linguistic behavior,it is said to be （）.

The compound word "bookstore" is the place where books are sold. This indicates that the meaning of a compound is the sum total of the meanings of its components.