You should wash your hands before_____meals.A：have B:having C:to have说答案,再说为什么选,

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You should wash your hands before_____meals.A：have B:having C:to have说答案,再说为什么选,

You should wash your hands before_____meals.A：have B:having C:to have说答案,再说为什么选,
You should wash your hands before_____meals.A：have B:having C:to have说答案,再说为什么选,

You should wash your hands before_____meals.A：have B:having C:to have说答案,再说为什么选,
B,before是介词,后面加宾语,动名词做宾语

having 介词后面当然要跟动词ing形式

before having meals，选B。before 后面省略主语，应该用-ing形式，不能加动词原形。

B 因为before是介词要加动词ing

B
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选B
介词后要用动词ing形式，再加上是主动吃饭，所以只有B是正确的

b，记住这种题型，出现现在分词作状语的，比如说when，where，之类的一律选ing形式，这是规律

b,before是介词，后用动词ing

You should wash your hands before_________(have)a meal. You should wash your hands.They’re too d-------? 看一看,填一填:you(should/shouldn,t)wash your hands you should wash your clothes with s（ ） Mary,your clothes are dirty. You should wash them with s----- You should wash your hands before eating这个句子的同义句是什么 you _____ wash your hands first.A shall B will C should D would You ( ) wash your hands () dinner You wash your face there. Do you wash your clothes? 谁能告诉我以下句子的意思(见补充说明)You should put rubbish in a bag.You should put books on the floor.You should wash your hands.You should tidy up your toys. You should wash your hands before_____meals.A：have B:having C:to have说答案,再说为什么选, You should wash your hands ___you have meals.a.when b.before c.as soon as d.while 1.You should ___ (wash) your hands often.2.Stop ____ (shout) ,the baby is sleeping.翻译并语法说明 You mast wash your hands eating things How_____do you wash your face?填 什么 Wash your hands before you eat Can you wash your ciothes? 是什么意思