I _______ two hours _______ the book last night. It’s very interesting.A. spend readingB. spent readingC. took reading
Sally has been swimming ______ four hours.
Sam ______ coins since he was eleven years old, and now he has hundreds of them.
I had a really hard time _____studying science this term.
Don’t ______ others when they make mistakes.
---It’s Tom’s birthday next Sunday. What should I get for him? ----______________