英语改错~~急！！！！！！！！！！！

1.What he says sounds like interesting.
去掉like.
What he says sounds interesting.

2.I don't know how I'm going to do.
how改为what
I don't know what I'm going to do.

3.Would you please give me a pen to write?
write改为write with
Would you please give me a pen to write with?

What he says sounds interesting

I don't know what I'm going to do

Would you please give me a pen to write with