In the botanic garden we can find a（n）______of plants that range from tall trees to small flowers.
| A．species | B．group | C．amount | D．variety |
Fans crowded the street outside, ______ a look at their hero.
| A．waiting for | B．waited for | C．to wait for | D．to be waiting for |
The lawyer advised Tom to drop the ______, since he had little chance to win.
| A．affair | B．case | C．incident | D．event |
We’d better stay at home, for John isn’t feeling well. ______, he doesn’t like to eat outside.
| A．Therefore | B．Certainly | C．Moreover | D．Meanwhile |
-We have worked day and night for a whole month.
--Why don’t you bring ______ to the attention that a good rest is badly needed?
| A．that | B．which | C．this | D．it |
The parents rushed to the school, only ______ that their son had left without a word.
| A．to tell | B．to be told | C．being told | D．having told |