Unlike free phrases, the structure of an idiom is to a large extent .（)

A. changeable

B. unchangeable

C. unstable

D. unfixed

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Being phrases or sentences, idioms consist of more than word but each is a semantic unity.（)

consist of set phrases and short sentences.（)

Chinese（）can all be predicates.

Directions:There are ten incoaplete sentences in this part.Fill in each blank on the Answer Sheet with the proper form of the words or phrases in parentheses.Take the goods back to your（）(retailing)who will refund you the purchase price.

Unlike most of the competitors, who gave up halfway, he managed to finish the race。

（) other peers, the twins seem to be more thoughtful and logical.

Being phrases or sentences, idioms each consists of at least two or more constituents. Idioms have the characteristics of semantic unity and structural stability.（)

prep. 不同；不像（）

（） his sister, Jack is quiet and does not easily make friends with others.

______ is a description of the structure of a language and the way in which linguistic units such as words and phrases are combined to produce sentences in the language.
A. lexicon
B. syntax
C. grammar
D. cohesion