--- Did you remember to give Mary the money you owed her?
--- Yes．I gave it to her _____ I saw her．
| A．while | B．the instant |
| C．suddenly | D．once |
After the actor told a funny story about his childhood, all the people burst into ______.
| A．laugh | B．laughter | C．laughing | D．laughers |
The box ______ a lot of coins, ______ an old Chinese one.
| A．is containing; including | B．contains; includes |
| C．is containing; included | D．contains; including |
We all believe that ______ 2010 Shanghai World Expo will be ______ success.
| A．a; a | B．the; / | C．the; a | D．/; a |
— What are you going to do this weekend?
— ______, I’m going to visit the Nature Museum.
| A．If anything | B．If ever | C．If possible | D．If busy |
_______ on the American Civil War, the book attracted a large number of readers when it was published.
| A．Based | B．Basing |
| C．Having based | D．Being based |