-where were you when the UFO arrived?-I was _______ the library.A.at front of B.in front ofA.应该为at the front of
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-where were you when the UFO arrived?-I was _______ the library.A.at front of B.in front ofA.应该为at the front of
-where were you when the UFO arrived?-I was _______ the library.A.at front of B.in front of
A.应该为at the front of
-where were you when the UFO arrived?-I was _______ the library.A.at front of B.in front ofA.应该为at the front of
选B
in front of,in the front of,at the front of,in front
这四个介词短语的涵义均与“在前面”有关,但用法区别在于：
in front of通常相对于某物体的外部来说,指另外的物体或人位于该物前面,意为“在……前面”.如：
There are some trees in front of the house．房子的前面有一些树.（树在房子之外的前面）
in the front of通常相对于空间而言,指某人或物位于某个空间的内部,但它指的是物体的前部,意为“在……的前部”.如：The teacher is standing in the front of the classroom．老师站在教室的前面.（指教室里的前面）
at the front of也指在某个物体本身或范围之内的前部,但仅指 一个点而已,范围没有in the front of那么大.两者有时可换用.如：Mike is sitting at ／in the front of the classroom．迈克坐在教室的前面.
in front单独使用,笼统地指某人或物“在前面”.如：
Now they are in front．现在他们在前面.
at front of 和in front of均为在.前面
但 at front of表示什么在某个物体前面 二者是平行的关系
in front of表示什么在某个物体前面 二者是从属,包含的关系
B.in front of
where were you when the UFO arrived?-I was ___B the library.A. at front of B.in front of
.A. at the front of指在某个物体本身或范围之内的前部，仅指一个点而已，意为“在……前部”。
附：at front of表示什么在某个物体前面 二者是平行的关系
B in fron...
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where were you when the UFO arrived?-I was ___B the library.A. at front of B.in front of
.A. at the front of指在某个物体本身或范围之内的前部，仅指一个点而已，意为“在……前部”。
附：at front of表示什么在某个物体前面 二者是平行的关系
B in front of通常指物体或人位于另外的物体的外部的前面。
There are some trees in front of the house.
房子的前面有一些树。（树在房子外的前面
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B in front of 在...前面
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in front of