TOEFL Grammar - Find the error

ScottsEnglishScottsEnglish Administrator Posts: 1,296 admin ✭✭✭✭✭✭✭
edited July 2016 in TOEFL Test

Find the error.

The sentence below contains one error.  Find the error (A-D) and then check your answer below.

Dry ice, the solid form of carbon dioxide, is use as a cooling agent because it reaches lower temperatures than water ice.
                        A                                                    B                             C                                           D

Dry ice, the solid form of carbon dioxide, is used as a cooling agent because it reaches lower temperatures than water ice.

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