He saw some litter on the ground and _______ A.picked it up B.picked them up

问题描述:

He saw some litter on the ground and _______ A.picked it up B.picked them up

B

litter是不可数,所以后面也需要用单数形式的it ,pick up拾起,所以选A pick it up

A litter为不可数名词

选A
因为some litter是不可数名词,要用it ,只有可数名词才能用them

选A litter是不可数名词

some litter看起来是复数,但是litter是不可数,所以后面也需要用单数形式的it ,pick up拾起,所以选a pick it up
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