—I am sorry for being late. I should have telephoned earlier.
. I have just arrived.
| A．That is to trouble |
| B．You are welcome |
| C．That is all right |
| D．You can never tell |
I feel like drinking some water, but there is ________ left in the bottle.
| A．nothing | B．no | C．none | D．a little |
----Have you got the result?
----No, It will be some time ________we know the result.
| A．when | B．since | C．if | D．before |
. Little ______about his own health though he was very ill.
| A．he cared | B．he cares | C．does he care | D．did he care |
The light will be thrown ______ the cause of cancer by research that is now in progress.
| A．to | B．upon | C．in | D．for |
—Why was he unhappy yesterday?
—A letter from home ______ an attack of homesickness.
| A．set off | B．set out | C．set about | D．set up |