-Sorry for keeping you waiting.
-Never mind. I________ here only a few minutes.
| A．came | B．come | C．was | D．have been |
Come and see me whenever ________ .
| A．you are convenient | B．you will be convenient |
| C．it is convenient to you | D．it will be convenient to you |
________ with the size of the whole earth, the biggest ocean does not seem big at all.
| A．Compare | B．When comparing | C．Comparing | D．When compared |
______production up by 60%，the company has had another excellent year.
| A．As | B．For | C．With | D．Through |
The project alongside with the experiment we had once devoted so much time ______ perfectly.
| A．to work out | B．to working out |
| C．to worked out | D．has worked out |
______ you are a college student，you should learn to be independent of your parents’ help.
| A．Now that | B．While | C．Unless | D．Even though |