1.選A 在吃飯前洗手.
2選B.早期的人人們數(shù)百萬年前發(fā)現(xiàn)火很有用.
3.選B.其他三個詞都是復(fù)數(shù).而is 后要求用單數(shù)名詞.
Wash your hands＿＿＿you have dinner.A.before B.but C.when D.so
Wash your hands＿＿＿you have dinner.A.before B.but C.when D.so
還有幾題：Early men found fire very＿＿＿millions of years ago.
A.use B.useful C.useless D.uses
Only a quarter of the Earth is＿＿＿.
A.oceans B.land C.forests D.seas
還有幾題：Early men found fire very＿＿＿millions of years ago.
A.use B.useful C.useless D.uses
Only a quarter of the Earth is＿＿＿.
A.oceans B.land C.forests D.seas
英語人氣：301 ℃時間：2019-11-18 19:08:50
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