Collecting stamps as a hobby___________ increasingly popular during the past fifty years.
#86319
A
becomes
B
became
C
has become
D
had become
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I think that ____ very difficult to learn.
#86022
A
the politics is
B
politics is
C
politics are
D
the politics are
Where to get the materials and how to get them ________ at the meeting.
#86329
A
have not discussed
B
have not been discussed
C
has not discussed
D
has not been discussed
Many a student ________ failed in the biology exam，and Tom is the only one of them who ________ decided to give up the course.
#85618
A
have；has
B
have；have
C
has；have
D
has；has
Neither the children nor the teacher________.
#85714
A
is to blame
B
are to blame
C
is blaming
D
are blaming
All the scientific evidence ________ that increasing use of chemicals in farming ________ damaging our health. (2012·湖南，35)
#85563
A
show；are
B
shows；are
C
show；is
D
shows；is