Question 50: Choose the correct answer in each sentence. Sefu Asamoah is an innovative architect who is ______ the traditional approach to improving space-efficient apartment buildings.

Question 50: Choose the correct answer in each sentence. Sefu Asamoah is an innovative architect who is ______ the traditional approach to improving space-efficient apartment buildings. A. challenge B. challenging C. challenged D. challenges The answer is NO Before the blank is 1 tobe, so it can’t be an infinitive (choice A) or a verb …

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