Collecting stamps as a hobby___________ increasingly popular during the past fifty years.
#86319
A
becomes
B
became
C
has become
D
had become
推荐题目
The teacher rather than the students _____ referring to Reading Skills that _____newly published in America.
#85635
A
is; was
B
is; were
C
are; was
D
are; were
Listening to loud music at rock concerts ______caused hearing loss in some teenagers.
#85895
A
is
B
are
C
has
D
have