The book on the teacher’s desk ________ yours.
| A．maybe | B．may be | C．may is | D．be |
_______ the teachers in the school is one hundred, and ________ of them are women teachers.
| A．A number of; four-fifth | B．The number of; four-fifth |
| C．A number of; four-fifths | D．The number of; four-fifths |
---Can you tell me whom the book ________ in April, 2012?
---Sorry, I don’t know.
| A．was written by | B．was written | C．is written | D．is written by |
My cousin used to ________ online too late, but now she is used to ________ to bed early.
| A．chat; go | B．chatting; go | C．chatting; going | D．chat; going |
---How far is it from your school to Lake Taihu?
---It’s about ________ drive.
| A．forty minute | B．forty minutes | C．forty minutes’ | D．forty-minutes |
Stop smoking, ________ your health will get worse soon.
| A．and | B．or | C．but | D．s o |