I don’t think she noticed the headmaster just at that moment, for she _______ the game on her cellphone.
| A．played | B．was playing |
| C．is playing | D．has been playing |
49. I don’t know whether small oranges are sweeter than big ______.
| A．those | B．ones | C．one | D．that |
50. When they met, they stopped and said hello to_______.
| A．each other | B．each another | C．the other each | D．each one |
51. After everyone took_______ place, the meeting began.
| A．his | B．their | C．there | D．the |
52. －Why don’t we take a little break?
－Didn’t we just have _______?
| A．it | B．that | C．one | D．this |
53. If you want to change for a double room you’ll have to pay ___$15.
| A．another | B．other | C．more | D．each |