______ Shenzhen many times but we still don't know the city well.
A. We have gone to B. Though we have gone to
C. We have been to D. Having been to
Kate has been in hospital ______ she fell off a ladder and had her left arm broken.
A. from B. because C. since D. after
They knew nothing about the war _______ they heard from the radio.
A. besides B. except
C. except what D. except for
It is the very factory ______ I once worked.
A. where B. that
C. as D. which
We can never imagine the trouble Mrs. Black had ______ her daughter.
A. to have brought up B. to bring up
C. bringing up D. brought up
They had no choice but ______ as their mother told them.
A. do B. to do
C. doing D. done
