问一句英语语法Last August Susan and forty-two other students got wet and dirty while removing six tons of garbage (25)_____ the river running across their city.(26)_____ cleaned up the river as part of a weeklong environmental camp.25.from 26.

问一句英语语法Last August Susan and forty-two other students got wet and dirty while removing six tons of garbage (25)_____ the river running across their city.(26)_____ cleaned up the river as part of a weeklong environmental camp.25.from 26.
问一句英语语法
Last August Susan and forty-two other students got wet and dirty while removing six tons of garbage (25)_____ the river running across their city.(26)_____ cleaned up the river as part of a weeklong environmental camp.
25.from 26.They

问一句英语语法Last August Susan and forty-two other students got wet and dirty while removing six tons of garbage (25)_____ the river running across their city.(26)_____ cleaned up the river as part of a weeklong environmental camp.25.from 26.
翻译：去年夏天,苏三和其他42名学生从流经城市的河中清理出四吨垃圾,他们弄得自己又湿又脏.清理这条河流是他们为期一周的环保夏令营的一部分.
语法：25题removeAfromB 从B中清理出A
26题代词they,他们(susan和其他42名学生)

remove sth from +地点 把。。。从。。。清除
they指代 Susan和students