GRAMMAR (4 points): Choose the underlined part that needs correction in each question. Circle A, B, C, or D.

Câu hỏi

Contributed to keeping the environment green and clean, these students are volunteering in community services.

A. Contributed

B. keeping

C. green

D. volunteering

Đáp án
A. Contributed

Câu hỏi thuộc Bài tập:

15-MINUTE TEST 2 (UNITS 4-5) - Tiếng Anh 11 Global Success