______ great fun it is to swim in summer !
— Come and join us, Ben!— I’m afraid I can’t. I’m too busy now. If I ________ time, I would certainly go.
Which of the following does paper burn in?
— The food looked bad, but it ________ OK.— So we can’t judge a man by his appearance.
— Why do you always go to Lanzhou University on weekends?— Because there’re lots of great speakers I can practice English ________ in the English Corner there.
The mountain I visited last Sunday isn’t very ________. Few ________ go sightseeing there.