A giant helium（氦） balloon is telling residents of Paris how good or bad the air quality is．When it's good, the balloon ----measuring 22 meters wide and 32 meters high---shines green．_________, it's red．
| A．Though terrible | B．Whenever good |
| C．If worse | D．When bad |
It is ____ fashion differs from country to country ____ may reflect the cultural differences.
| A．that ; what | B．the ; / | C．what ;that | D．that ; that |
——What made him so upset?
——______she failed in her examination
| A．What | B．That | C．Because | D．Whether |
He expressed a hope _______ he would visit China again the next year, and this was the very hope ________ he would express as soon as he arrived in the country.
| A．that; that | B．which; which | C．that; which | D．which; that |
---So you haven't read the information form?
---_________makes the matter worse is that I don't have a single copy．
| A．It | B．What | C．That | D．Which |
After 15 years, she changed a lot and looked quite different from ____ she used to be.
| A．that | B．whom | C．what | D．who |