---David has made great progress recently.
---_____, and______ .
| A．So he has; so you have | B．So he has; so have you |
| C．So has he; so have you | D．So has he; so you have |
—You probably won't need to call Joe, but take his number, just ________.
—Thanks a lot.
| A．at random | B．in return |
| C．in case | D．by heart |
If we ________ one of the other uploading approaches, the process would have taken longer than one hour.
| A．used | B．had used |
| C．should use | D．would use |
For Wang Shun，________ university graduate from China's less developed Guizhou Province，shopping online is ________ delight as she tries to keep pace with the lives of those in big cities.
| A．the；a | B．a；不填 |
| C．an；a | D．a；a |
The urge to go abroad for further study is strong, but it was not until last summer ________ I knew how powerful it could be.
| A．who | B．that |
| C．where | D．before |
Only when I put myself in their position ________ they were more miserable than me.
| A．I had known | B．had I known |
| C．I knew | D．did I know |