—Did you ring her last night?
—Yes, I her, but she wasn’t at home.
| A．really ring | B．did ring | C．did rang | D．do ring |
____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 |
-- Are your parents doctors, too?
--- No, they are teachers. of them loves teaching very much.
| A．None | B．Both | C．Either | D．Neither |