---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

---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

---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

-Mr．Li’s lecture was __________．

-But it was a pity that I missed it．

1. A.
   worth listening
2. B.
   worthy listening
3. C.
   worth listening to
4. D.
   worthy to listen to