You'd better not ride the bicycle on snowy days; you ______ fall．
| A．must | B．might |
| C．have to | D．ought to |
After graduating from college,l took some time off to go travelling, _______turned out to be a wise decision (2010 .四川)
| A．that |
| B．which |
| C．when |
| D．where |
John said he'd been working in the office for an hour,_______was true.
| A．he |
| B．this |
| C．which |
| D．who |
His movie won several awards at the film festival,_______was beyond his wildest dream.
| A．which |
| B．that |
| C．where |
| D．it |
York, _______last year, is a nice old city.
| A．that I visited |
| B．which I visited |
| C．where I visited |
| D．in which I visited |
Dorothy was always speaking highly of her role in the play,_______ of course, made the others unhappy.
| A．who |
| B．which |
| C．this |
| D．what |