PHẦN 3: ĐỀ ÔN LUYỆN THI PRACTICE TEST 2

PART C. READING (35 POINTS)Read the following passage and choose the best answer to each of the foll...

51/95

That might not sound like much, but that figure hides two far more (51)………..trends for society and for the environment.

concerning

worrying

concerned

worried

Giải thích

Chọn B