—Look at the flowers I gave you last month. They are dying! ________ do you water them?
—Sorry, I forgot to water them.
A.How longB.How often
C.How soonD.How much
B

試題分析:句意:——看看我上個(gè)月給你的花。他們快死了!你多久給他們澆一次水?——對不起,我忘了給他們澆水。A. How long 對長時(shí)間,對時(shí)間段提問;  B. How often多久一次,對頻率提問;C. How soon 多久,對將要用多長時(shí)間提問;D. How much多少,對價(jià)格提問。根據(jù)do you water them?這是一般現(xiàn)在時(shí)?芍颂巻査(jīng)常給花澆水的頻率,多久一次,故選B。
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