We were told that we should follow the main road ___ we reached the central railway station.
| A．whenever | B．until | C．while | D．wherever |
London is the city ____ has got the chance to host the 2012 Olympic Games .
| A．which | B．what | C．it | D．where |
____hard ,and you will make greater progress.
| A．If you study | B．Study | C．Studying | D．To study |
There was a time_____we went to the country and stayed with the farmers there.
| A．which | B．that | C．when | D．while |
.---I’m going to the States for further study.
---How long ____ you ___there?
| A．had , stayed | B．did, stay | C．have, stayed | D．are, staying |
. I, who, ________your classmate, will support you forever.
| A．am | B．is | C．are | D．be |