--- Will you please answer the door? It _______ be your sister.
---Sorry, I ________. I'm feeding the rabbit.
| A．must；mustn’t | B．will；can’t |
| C．may；can’t | D．must；needn’t |
Do you know nearly ________of our body is water?
| A．three-quarter | B．three quarters | C．three fourth | D．three fourths |
I apologized to my parents _________not finishing the exercises in time.
| A．to | B．for | C．as | D．except |
I enjoy the popular dance "hip-hop", but ________of my parents likes it.
| A．either | B．both | C．none | D．neither |
The twins are so much alike that it is difficult to tell one from________.
| A．other | B．the other | C．others | D．another |
Mum couldn’t find any help and had to do the housework_________.
| A．she | B．her | C．hers | D．herself |