1.Water flows ____the pipe.A.through B.across C.over D.througout2.The librarian has ___ the man who stole the book .A.looked for B.search for C.found D.found out

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1.Water flows ____the pipe.
A.through B.across C.over D.througout
2.The librarian has ___ the man who stole the book .
A.looked for B.search for C.found D.found out

through 穿过 across横跨 over从上面穿过,水是直接从管道穿过的
found out 查出

A,从管中流过
D,从has就知道是完成时,只能D

1.A 通过 在空间顺着通过 而across 横穿 比如 across the street
2.D 查明

1 A
2 D

1,A
2,D

1.A 因为A.through是通过,B.across是中间穿过 C.over是在……之上,最后一个不知道是什么 2.D AB都是寻找 C vt.获得;认为vi. 裁决n. 发现 Dfind out是找出