Exercise is ________ as any other to lose unwanted weight.

A．so useful a way　 B．as a useful way

C．as useful a way 　D．such a useful way

After the new technique was introduced，the factory produced________ in 2001 as the year before.

  A．as twice many machines   B．twice many as machines

  C．twice as many machines   D．as many machines twice

 their cheerful voices showed that they were having a ________ discussion.

  A．friendly     B．serious      C．complete    D．noisy

— I narrowly escaped being hit by a speeding car yesterday.

  —You can never be ________ careful in the street.

   A．too       B．very        C．enough      D．so

Helping the old and the weak is a good virtue which________ is necessary for us to do.

A．however　 B．otherwise 　C．still　 　　　D．therefore

The ability to store knowledge makes computers different from every other machine________ invented.

A．ever　　 　B．thus　 　　 C．yet　 　　D．still

Our new house is very ________ for me as I can get to the office in five minutes.

  A．patient               B．suitable

  C．convenient            D．comfortable

The man to whom we handed the forms pointed out that they had not been________ filled in.

A．generally　　　　　　 B．regularly

C．strictly　　　　　 　　D．properly

It’s known to all that unless you take ________ exercise you won’t keep good health.

  A．normal               B．ordinary

  C．average               D．regular

—Would you like to go to the concert with me，Mary?

—I have got no interest in it；________，I have lots of homework to do.

A．otherwise　　　　　　 B．besides

C．however　　　　　 　 D．therefore