1 . Critical reasoning, together with problem-solving, ________ teenagers to make better decisions.

A．prepare	B．prepares
C．is preparing	D．are preparing

2 . Guide books are prepared to suit the convenience of the traveler, ________ routes round a city or a site are often suggested.

A．for which	B．with which
C．for whom	D．with whom

3 . —I worked on your car the whole night. How is it running?
— It is running great! _____________. You were such a big help!

A．It’s a pity	B．I couldn’t agree more
C．Forget it	D．I can hardly thank you enough

4 . The experienced climber was________ the potential danger in such extreme weather and decided to wait until the following day.

A．completely blind to	B．totally lost in
C．pretty keen on	D．well aware of

5 . Plato believed that talent and intelligence _________genetically and thus _________in children born to all classes, although his proposed system of selective public education for an educated minority of the population does not really follow a democratic model.

A．is not distributed, is to be found	B．are not distributed, are to be found
C．is not distributed, has been found	D．are not distributed, have been found

6 . Feeling fearful is healthy ________ it helps you slow down and evaluate risks properly.

A．because

B．until

C．before

D．although

7 . Afternoon tea, ________ as a light snack to bridge the gap between lunch and dinner, dates back to the 1840s.

A．to design

B．designing

C．designed

D．having designed

8 . Currently, almost 50 percent of   jobs, including journalism, ________ with technology that can operate automatically.

A．has been replacing	B．is being replaced
C．have been replacing	D．are being replaced

9 . Many people welcome the chance to do meaningful things, ________they will get no pay.

A．even if

B．as if

C．in case

D．now that

10 . Such a simple experiment can effectively ________ people’s doubts about the new technology, so they are willing to embrace the innovation.

A．bring forth

B．go over

C．put away

D．wipe out