34．Mr．Barret doesn’t think that all bad language should be allowed．In his opinion, there are _____ that should be kept up．
| A．degrees | B．levels | C．limits | D．Standards |
I was out town at the time, so I don’t know exactly how it ____________________.
| A．has happened | B．happened | C．happens | D．was happening |
Rather than ____________ on a crowded bus, he always prefers ______________ home.
| A．riding; to cycle | B．riding; cycling | C．to ride; cycling | D．ride; to cycle |
After studying in a medical college for five years，Jane ________________ her job as a volunteer doctor in the countryside.
| A．took up | B．made up | C．turned up | D．set up |
— Ann is in hospital.
— Oh, really? I _____________ know. I _______________ go and visit her.
| A．didn’t; will | B． don’t; will | C． don’t; would | D．didn’t; am going to |
_____________ all the seats were full, he had no choice but to stand up.
| A．For | B．As | C．Though | D．Unless |