_______ more and more people speak the global languages of English,
Chinese, Spanish, and Arabic, other languages are rapidly disappearing.
| A．When | B．While |
| C．As | D．As soon as |
____ people from all walks of life are working hard to create ____new Hefei.
| A．/; the | B．The; the |
| C．/; a | D．The; a |
One survey shows that large quantities of water ______wasted every year in China.
| A．are | B．be |
| C．has been | D．is |
Although she is pretending hard to be young, grey hair and the lines on her face _______.
| A．hold her up | B．pick her up |
| C．take her away | D．give her away |
It was in the hotel where my father works _______ I met the film star.
| A．what | B．that |
| C．when | D．where |
— Can you meet me at the airport at 9 o’clock next Monday?
— I’d like to, but I ________ an English class then.
| A．am having | B．have |
| C．will have | D．shall be having |