Bộ 3 Đề kiểm tra Unit 7 - Tiếng anh 10 iLearn Smart World có đáp án (Đề 1)
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The doctor attached a monitor ______________ the mother’s stomach so that she could listen to the baby's heartbeats.

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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.

The doctor attached a monitor ______________ the mother’s stomach so that she could listen to the baby's heartbeats.

with

to

into

on

Giải thích

Chọn B