Question

【题目】—Look at the flowers I gave you last month. They are dying! _______ do you water them?
—Sorry, I forgot to water them.
A.How long
B.How often
C.How soon

Answer 1

【答案】B
【解析】句意：看我上个月给你的这些花。他们快要死了！你多久给它们浇一次水？—对不起，我忘了给他们浇水了。A. How long多长时间；B. How often多久一次；C. How soon多久。How soon用于将来时态，排除C；根据答语判断，问句是询问多久浇水一次，答案为B。