You can’t judge a book by its cover, ____________.
--- I ______ so busily recently that I ______ no time to help you with your math. --- That’s OK. I can manage it by myself.
--- Oh, dear. I forgot the air tickets. --- You ______ something.
—Many of my classmates have a bad opinion of Li Xiaojun.—____.
It was playing computer games that cost the boy plenty of time he ____ doing his lessons.
Maybe you have been to many interesting places, but nowhere else in China ____ such a beautiful place.