Choose the correct answer. The poor boy had a serious chest ______ which had spread into his lungs causing a very painful cough.

19/20

Choose the correct answer.

The poor boy had a serious chest ______ which had spread into his lungs causing a very painful cough.

sickness

indisposition

infection

indigestion

Giải thích

Đáp án đúng: C

Giải thích: infection = nhiễm trùng

Dịch nghĩa: Cậu bé đáng thương bị nhiễm trùng ngực nghiêm trọng, đã lan sang phổi gây ra cơn ho rất đau đớn.