题目内容

Itisnotalwayseasyforthepublictosee_______useanewinventioncanbeoftohumanlife.

A. whose
B. what
C. which
D. that

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Beforeaproblemcanbesolved,itmustbeobvious______theproblemitselfis.

A. what
B. that
C. which
D. why

Asmanyfivecoursesareprovided,andyouarefreetochoose______suitsyoubest.

A. whatever
B. whichever
C. whenever
D. wherever

Jerrydidnotregretgivingthecommentbutfelt______hecouldhaveexpresseditdifferently.

A. why
B. how
C. that
D. whether

Everyoneinthevillageisveryfriendly.Itdoesn'tmatter____youhavelivedthereforashortoralongtime.

A. why
B. how
C. whether
D. when

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