We won’t be able to learn English well _____we learn enough words by heart and do enough reading[ ]

Why was it so noisy over there? — The Twins were surrounded by their fans ____ they stepped out of the hall

“This book is ______ more useful for us students.” “Yes, but it is _______ too difficult.”

Use your head，you’ll have an idea

Everyone doesn’t agree to the plan Some support itwhile I’m one of ___ opposed to it