题目内容：

III. 下列各句中均有一处错误，请找出并改正。

1.It’s too cold outside. Please don’t forget taking your scarf with you.

        A                    B      C            D

2.They plan inviting an engineer to give them a talk. 

             A               B    C   D

3.He is trying to help the people who are in the trouble.

         A    B             C         D

4.It was the key of opening the door. 

     A     B  C   D

5.There is a piece of meat on the table. Please pick up it and put it on the plate.

A        B                          C                D