--- This history book is of great value. --- Exactly. ____________ can be enjoyed from it ____________ you have a deep understanding of it, however.
I believe _____ important to have a rest when you feel very tired.
Don’t stop working _____ twelve.
It’s important to eat a _____ diet.
–Excuse me, _____ ?--It’s windy.
--_____ with you? --I have a score throat.