Bộ đề thi thử 2019 Tiếng Anh cực hay có lời giải chi tiết (Đề số 12)

I made sure I had all the facts_ my fingertips before attending the meeting

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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.

I made sure I had all the facts__________my fingertips before attending the meeting.

with

at

by

for

Giải thích

Đáp án B.

Ta có cụm từ: At one’s fingertips: trong tầm tay