TOEIC Grammar - Choose the right word

ScottsEnglishScottsEnglish Administrator Posts: 1,175 admin ✭✭✭✭✭✭✭

Choose the right word for the following sentence.

He is certain _______________ the product will appeal to consumers.

A. for
B. that
C. about
D. of

Click here for the correct answer:

He is certain that the product will appeal to consumers.

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