Complete the following statements with proper words or expressions according to the course book.The idiom “by twos and threes” cannot be turned into “by threes and twos”. It shows that unlike free phrases, the structure of an idiom is to a large ex
Complete the following statements with proper words or expressions according to the course book.The idiom “by twos and threes” cannot be turned into “by threes and twos”. It shows that unlike free phrases, the structure of an idiom is to a large extent( )．
