_____ really matters is not whether you will succeed or not, but rather whether you will try your best.
| A．whether | B．What | C．if | D．Which |
American fathers ______ more than twice the amount of time with their children than they used to in years past, due to a sweeping new trend called "unemployment".
| A．were spending | B．spent | C．are spending | D．have spent |
A clean environment can help the city bid for the Olympics, which _______ will promote its economic development.
| A．in nature | B．in return | C．in turn | D．in fact |
— Look, where are you going?
— I can’t ________ the map and drive at the same time, can I?
| A．watch | B．read | C．see | D．notice |
For a long time, they walked without saying _________ word. Jim was the first to break ________ silence.
| A．the; a | B．a; the | C．a; 不填 | D．the; 不填 |
There is no doubt our educational system leaves something to be desired．
| A．what | B．whether | C．if | D．that |