Mark the letter A, B, C or D on...

Câu hỏi: Mark the letter A, B, C or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.
We went away on holiday last week, but in rained day in day out.

A. every other day

B. every single day

C. every second day

D. every two days