Today many physical bookstores ________ down with financial difficulties, inflexible management strategies and competitive pressure from online bookstores.
#105310
A
had closed
B
having closed
C
being closed
D
are closing
推荐题目
 I’m glad to see your health ______ after the operation.
#105301
A
picking up
B
setting up
C
taking up
D
getting up
 Britain is being ________ in the race for new markets.
#105311
A
left alone
B
left out
C
left behind
D
left over
I'll go to the library as soon as I finish what I ________.
#105315
A
was doing
B
am doing
C
have done
D
had been doing