问题描述：
关于介词短语
He bought this pair of shoes in the U.S.last week.
1.He buy this pair of shoes 是主谓宾结构吧?他+买+这双鞋
2.He buy this pair of shoes in the U.S.in the U.S是介词短语吗?如果是主谓宾结构介词短语能放在宾语后面吗?起到什么作用?
3.he is in the U.S 主系表结构吗?
He bought this pair of shoes in the U.S.last week.
1.He buy this pair of shoes 是主谓宾结构吧?他+买+这双鞋
2.He buy this pair of shoes in the U.S.in the U.S是介词短语吗?如果是主谓宾结构介词短语能放在宾语后面吗?起到什么作用?
3.he is in the U.S 主系表结构吗?
问题解答：
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