Evidence gained from observation and experiment is often used to _______ a scientific theory. 
#65501
A
concern
B
confirm
C
consult
D
combine
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Believe it or not. My grandpa , 95 years old now, ________World WarⅡ.
#71237
A
went across
B
passed through
C
went through
D
went by
Some advertisements_______pictures or words of experts to show people how good the products are.
#76376
A
are consisted of
B
are made of
C
consist of
D
are made up
 Hardly had the employees ________ with their work when the rain stopped.
#70081
A
passed on
B
focused on
C
depended on
D
carried on