My suggestion would be (between I have similar challenges

) :
Thinking and going through the techniques that works for her and amending where necessary - Speed/Understanding/Inferences/Plot(what/where/who/why ..etc) , simple annotation for bigger comprehensions (if she had to refer back) or what ever works for her.
Then doing 1 or 2 exercises per day , applying these techniques and amending based on what works for it - Suggest medium size but at the complexity level expected for 11 plus - CGP paper exercise ? Hardly 10-15 min per each one.
The real value would be going through with her - each line and discussing her understanding against what was asked / answered but also any new vocab ..etc. And finally reassuring that she will be alright.
My 2 pence
