Wash your hands___you have dinner.A.before B.but C.when D.so 还有几题:Early men found fire very___millions of years ago.A.use B.useful C.useless D.usesOnly a quarter of the Earth is___.A.oceans B.land C.forests D.seas

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Wash your hands___you have dinner.A.before B.but C.when D.so 还有几题:Early men found fire very___millions of years ago.A.use B.useful C.useless D.usesOnly a quarter of the Earth is___.A.oceans B.land C.forests D.seas
Wash your hands___you have dinner.A.before B.but C.when D.so
还有几题: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

Wash your hands___you have dinner.A.before B.but C.when D.so 还有几题:Early men found fire very___millions of years ago.A.use B.useful C.useless D.usesOnly a quarter of the Earth is___.A.oceans B.land C.forests D.seas
1.选A 在吃饭前洗手.
2选B.早期的人人们数百万年前发现火很有用.
3.选B.其他三个词都是复数.而is 后要求用单数名词.

A饭前要洗手
B古代人类在几百万年前就发现火很有用
B地球上只有1/4是陆地

A.before C.useless C.forests

C,B,B

A.B.B 不知道是不是全对....

Wash your hands_A__you have dinner. (饭前请洗手)
A.before B.but C. when D.so
Early men found fire very_B__millions of years ago.(几百万年前,早期人类发现火非常有用)
A.use B.useful C.useless D.uses
Only a q...

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Wash your hands_A__you have dinner. (饭前请洗手)
A.before B.but C. when D.so
Early men found fire very_B__millions of years ago.(几百万年前,早期人类发现火非常有用)
A.use B.useful C.useless D.uses
Only a quarter of the Earth is_B__.(地球只有四分之一的土地)
A.oceans B.land C.forests D.seas

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