三位四通换向阀结构图:1.He spent his weekends _____the homework.

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1.He spent his weekends _____the homework.
a.do b. did c, doing d. to do

c
spend(on) doing

C

spend on sth

spend (in)doing sth.(不是on)

1.He spent his weekends _____the homework. 难道可以说He spent one hour in finishing his homework！？finish作为瞬间动词，怎么能用one hour 修饰 He spent the whole night ___________TV. He spent the whole night ___________TV He spent a hour reading the letter HE KNOWS HIS OINIONS.是什么意思? He finally confessed his crime. he him his she her he FELL of his bike he is on his way