Evidence gained from observation and experiment is often used to _______ a scientific theory.
| A．concern | B．confirm | C．consult | D．combine |
They promise that they will finish the project in a month，but I remain _______about their claim.
| A．optimistic |
| B．concerned |
| C．mysterious |
| D．skeptical |
The young man has a reputation________ laziness，so he leads a poor life.
| A．for |
| B．as |
| C．with |
| D．in |
The penguins from the movie Happy Feet(《快乐的大脚》)are tap dancing back to the screen for Happy Feet Two，________opens in the Us on November 18.
| A．which |
| B．that |
| C．when |
| D．where |
(2012年重庆卷，34)Evidence has been found through years of study ________ children's early sleeping problems are likely to continue when they grow up.
| A．why |
| B．how |
| C．whether |
| D．that |
(2012年黑龙江双鸭山一中高三期中，25)
The ________ you make，the ________you will make.
| A．more efforts；more progress |
| B．greater progress；greater efforts |
| C．more efforts；more progresses |
| D．many more efforts；much progress |