PHẦN 3: ĐỀ ÔN LUYỆN THI PRACTICE TEST 2

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

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