The price of the radio ____ , and I don’t know the reason. 
#103927
A
went up
B
has gone up
C
had gone up
D
will go up
推荐题目
A library with five thousand books ____________ to the nation as a gift.
#102535
A
have offered
B
are offered
C
has offered
D
is offered
Ladies and gentlemen, please fasten your seat belts. The plane _________.
#102384
A
is taking off
B
takes off
C
has taken off
D
will be taken off