- _____ do you go online, Mary?
- Twice a week.
| A．How long | B．How often | C．How many | D．How much |
Do you need help _______ your Maths homework?
| A．to | B．from | C．with | D．for |
Which floor do you_______ this tall building?
| A．live | B．live on | C．live in | D．live on in |
-How many students are there in your school?
-There are about eight_______ students.
| A．hundred | B．hundreds | C．hundreds of | D．hundred of |
-_______?
-Yes. This is Kitty speaking.
| A．What's your name | B．May I speak to Kitty ' |
| C．Who are you | D．Who calls you, Kitty |
Sam sits_______ Kitty." Which is wrong(错误的)?
| A．behind | B．between | C．next to | D．in front of |