Fill in the blanks with articles where ．
#4567
A
necessary
B
necessarily
C
is necessary
D
it necessary
推荐题目
Evidence obtained from observation and experiment is often used to _____ a scientific theory.
#4841
A
confirm
B
confine
C
conform
D
conceive
.The Flight Company _________ its costomers top-quality service.
#4743
A
provides
B
guarantees
C
gathers
D
applies
It is not _____ that Sanlu has been connected to a scandal involving milk powder, according to China Daily.
#4654
A
for the first time
B
the first time
C
first time
D
in the first time