— How many students are league members in your school?
— League members ________ one fifth of the number of the students in our school.
| A．take up | B．make up | C．set up | D．fix up |
Do you brush ___ every day?
| A．your tooth | B．your tooths | C．your teeth | D．teeth |
Many people are still in __ habit of writing silly things in __ puplic places.
| A．the…the | B．/…/ | C．the…./ | D．/…the |
Beyond ___stars, the astronaut saw nothing but ___ space.
| A．/…the | B．/…/ | C．the…/ | D．the…the |
Biology is ___.
| A．science of life | B．science of the life | C．the science of the life | D．the science of life |
Miss Smith is a close friend of ___.
| A．Mary mother’s | B．Mary mother | C．Mary’s mother’s | D．Mary’s mother’s |