It was ______ back home after the experiment.
| A． not until midnight did he go | B． until midnight that he didn’t go |
| C． not until midnight that he went | D． until midnight when he didn’t go |
When I arrived at home, my little son was sitting in the corner of the bedroom, _______ with many dolls.
| A．surrounding | B．surrounded |
| C．surrounds | D．surround |
I used to go to the gym twice a week, but I _________ time to do exercises since last Christmas.
| A．don’t have | B．didn’t have |
| C．haven’t had | D．hadn’t had |
It is known to us all that the old professor, for______ life was hard in the past, still works hard in his seventies..
| A．whose | B．whom |
| C．what | D．which |
_____in the library if I come here to see you tomorrow?
| A．Do you read | B．Will you have read |
| C．Will you read | D．Will you be reading |
—What have you learned from your experience in England?
—Well, meeting people from another culture ______ be very difficult.
| A．can | B．must |
| C．shall | D．should |