Tổng hợp đề thi thử tiếng anh thpt quốc gia (Đề số 31)

She started the course two months ago but dropped _____________ after only a month

15/50

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

She started the course two months ago but dropped _____________ after only a month

out

back

of

in

Giải thích

Chọn A