–Look at that girl! Is it Susan?
--No, it _______ be her. She went to her hometown just now.
| A．mustn’t | B．can’t | C．needn’t | D．wouldn’t |
The woman _______ is singing in the hall is our teacher.
| A．what | B．which | C．who | D．whom |
Jessica's parents always encourage her ________ out her opinions.
| A．speak | B．speaking |
| C．to speak | D．will speak |
I still remember the college and the teachers________ I visited in London years ago.
| A．what | B．who | C．that | D．which |
—What kind of music do you like? —I like music ______ I can dance to.
| A．because | B．when |
| C．who | D．that |
This is the most beautiful garden _____ I have ever seen.
| A．which | B．who | C．whom | D．that |