book is ______ more useful for usstudents” “Yes, but it is _______ too difficult”

Tom’s mother often requires that hemore time in studying English every day．

________ when does that shop stayopen —About midnight.

You’d better _______ too much meat. You are much toofat.

Ted, it’s a good idea to ask for help from our expert.— Thanks for the advice, but this is something we have to ________ ourselves.