---Mr. Li’s lecture was ____. --- But it was a pity that I missed it.worth listening B. worthy of listening C. worth listening to D. worthy to listen to
Hiking is _____ great fun. You will get close to ____ nature and take exercise at the same time.
I couldn't imagine ______difficult it was for these badly injured victims to make it to the hospital.
—Where did you get this book? —I picked it up from a second-hand bookshop if you ______know.
—What are you two whispering about over there? —Oh, ______. Just small talk.
When I ______home, I caught a thief stealing from a passer-by.