Bộ 3 Đề kiểm tra Unit 4 - Tiếng anh 10 iLearn Smart World có đáp án (Đề 1)

Thank you for ______________ your old books to the library. We’re very grateful.

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Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.

Thank you for ______________ your old books to the library. We’re very grateful.

volunteering

donating

supporting

raising

Giải thích

Chọn B