plant的过去式（）put的过去式（）用适当介词填空：i am ( ) Row Six.They are ( )Grade Two.We go to school ( ) ( ）seven.2LSB

planted
put
in
at
at
第一个是加ed，第二个是原型

planted；put；in；in；at；about.
问题讲plant的过去式为动词过去式的规则变化，因此直接加“ed”；
put的过去式还是“put”，为不规则变化，不规则变化需单记。
用适当介词填空第一题和第二题都填“in”，这两道题都表示在一个群体里，应填修饰大地点的“in”。用适当介词填空第三题如果是一个空，填“at”，因为它修饰一个具体的时刻；如果是两个空，填“at about”，因为我们去学校不一定就是准准确确的七点钟，只能说是“大约”了。

planted
put
in
in
at the

planted
put
in
at
at

1.planted
2.put
3.in
4.at
5.at

(1)plant的过去式（planted）.
(2)put的过去式（put）.
i am (in ) Row Six.
They are ( in)Grade Two
We go to school (at) (the）seven.

plant的过去式（planted)
put的过去式（put)
用适当介词填空：
i am ( in) Row Six.
They are ( at)Grade Two.
We go to school ( at ) (the ）seven

planted
puted
i am ( ) Row Six.
They are ( )Grade Two.
We go to school ( ) ( ）seven

plant的过去式（planted）
put的过去式（put）
用适当介词填空：
i am ( in) Row Six.
They are (in )Grade Two.
We go to school ( at ) ( about）seven.

in
on
at