--- Could you tell me why I am constantly yawning this afternoon?
---Yawning ______ an indication that your body lacks oxygen and needs a rest.
| A．acts as | B．serves as | C．functions as | D．plays as |
The system has been designed to give students quick and easyto the digital resources of the library.
| A．way | B．approach | C．access | D．association |
----What do you think has made Tom feel down?
----his seat in the election, I think.
| A．As he lost | B．Losing | C．Because of | D．Lost |
Although he has become wealthy, Mr. Wood remainshe used to be, modest and friendly.
| A．which | B．where | C．what | D．that |
This special school accepts all disabled students, educational level and background.
| A．according to | B．regardless of | C．in addition to | D．in terms of |
----Where did you see the movie Life of Pi directed by Ang Lee?
----It was in the cinemaI regularly go.
| A．which | B．that | C．what | D．where |