(2013·银川高三二模)It remains to be seen ________ this plan is practical enough to keep the project going.
| A．whether | B．how |
| C．where | D．when |
I am at leastageRobert if I am not older than he．
| A．the same；as | B．the same；with |
| C．as same；as | D．as same；with |
What the doctors really doubt is________ my mother will recover from the serious illness soon.
| A．when | B．how | C．whether | D．why |
Her question was so difficult that I could hardly make any ____ of it at all.
| A．explanation | B．meaning | C．sense | D．idea |
Despite the fact that Lucy is a lovely girl, she _____ be extremely difficult to work with sometimes.
| A．must | B．should | C．would | D．can |
Fitness is important in sports but of at least _____ importance are skills.
| A．fair | B．reasonable |
| C．equal | D．proper |