—Where's that report?
—I brought it to you ________ you were in Mr.Black's office yesterday.
| A．if | B．when | C．because | D．before |
_______ such a good chance, he planned to learn more.
| A．Given | B．Being given | C．Having given | D．Giving |
by a greater demand for vegetables,farmers have built more green houses.
| A． | Driven | B． | Being driven |
| C． | To drive | D． | Having driven |
The open-air celebration has been put offthe bad weather.
| A． | in case of | B． | in spite of |
| C． | instead of | D． | because of |
The play had already been on for quite some time when weat the New Theatre.
| A． | have arrived | B． | arrived |
| C． | had arrived | D． | arrive |
Professor James will give up a lecture on the Western culture,but when and where _______ yet.
| A．hasn’t been decided | B．haven’t decided |
| C．isn’t being decided | D．aren’t decided |