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初三英语题1.It is difficult to shoot a____(fly) bird high up in t

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初三英语题
1.It is difficult to shoot a____(fly) bird high up in the sky.
2.The ____(leaf) on the tree turn yellow in autumn.
3.I noticed them____the teacher's office just now.
A.went into B.go into C.was going into D.came out of
flying ,表示进行,正在飞的鸟
leaves,变复数,树叶
B
notice sb (to) do/doing
notice后面可以跟do,表示留意到全过程,do 是不定式省to的结果
也可以doing,表示留意到一瞬间,不是全过程.