1 . The world has been changing at such a high speed            no one has expected.

A．which

B．that

C．and

D．as

2 . The man waiting for the interview is the same man ______ I talked to in the elevator. Look, he is wearing the same hat ______ I’m wearing now.

A．that; as

B．as; that

C．as; which

D．who; as

3 . The background music in the department is such pleasant music________ played to stimulate customers’ desire to buy more.

A．that is

B．as is

C．as

D．that

4 . Such a good policeman __________we should learn from was murdered last night.

A．who

B．that

C．as

D．whom

5 . Such fears of failing the tests ______ you have are totally unnecessary. You’d better remove them from your mind.

A．that

B．which

C．as

D．so

6 .         is strongly recommended is that we should never trust such people        always over-praise you to your face.

A．It; which

B．As; that

C．What; as

D．It; who

7 . I have never had such a chance ______I always imagined.

A．which

B．as

C．what

D．that

8 . In the last monthly test there was so difficult a problem ________ could work out, which made the test designer puzzled.

A．as none of us

B．that nobody

C．which neither

D．as anybody

9 . Teenagers confront such significant changes in the prefrontal cortex (前额皮质) ________ impact their behavior and emotions.

A．as

B．that

C．which

D．whose

10 . Constant efforts have been poured into the protection of such traditional local languages ________ are only spoken by a tiny portion of people, in the presence of ________ world cultures are sure to be diverse and colourful.

A．that; which

B．as; which

C．that; whose

D．as; whose