Circle A, B, C or D to indicate the correct answer to each of the following questions.

Câu hỏi

With the help of technology, people can now grow vegetables in _____________ gardens of high-rise buildings.

A. room

B. front

C. roof

D. back

Đáp án
C. roof

Câu hỏi thuộc Bài tập:

E11- Unit 3- Practice 3