The team are working hard to ___ the problem so that they can find the best solution.
| A．face | B．prevent | C．raise | D．analyze |
What the doctors really doubt is _____________ my mother will recover from the serious disease soon.
| A．when | B．how | C．whether | D．why |
These wild flowers are so special I would do _____________ I can to save them.
| A．that | B．which | C．whichever | D．whatever |
___________ has helped to save the drowning girl is worth praising.
| A．Who | B．The one | C．Anyone | D．Whoever |
— I drove to Zhuhai for the air show last week.
— Is that ____________ you had a few days off?
| A．why | B．when | C．what | D．where |
No one can be sure _____________ in a million years.
| A．what man will look like | B．what will man look like |
| C．man will look like what | D．what look will man like |