Helps in Fill in the blanks

[juampiok]

I don´t know, what happend when i do this kinds of exercises. Fill in the blanks always, was the most difficults exercises how i have to do.
I need some tips to do well this exercises. Thanks

[banderas]

I don´t know, what happend when i do this kinds of exercises. Fill in the blanks always, was the most difficults exercises how i have to do.
I need some tips to do well this exercises. Thanks

You can post one here and have us comment.
My tip is practise, practise and practise.