_____ is known to everybody that the moon travels round the earth.
| A．It | B．As | C．When | D．Where |
28. We___________our examination at this time next Monday.
| A．will be taking | B．will take |
| C．to be given | D．will have been taken |
27. — 
Is there any possibility_____________you could pick me up at the airport?
— No problem.
| A．when | B．that | C．whether | D．what |
26. Don’t be__________by products promising to make you lose weight quickly.
| A．taken off | B．taken out |
| C．taken away | D．taken in |
25.Although she managed to buy some medicine, the______instructions on the bottle really made her .
| A．confusing; confused | B．confused; confused |
| C．confused; confused | D．confusing; confusing |
24._________our arriving at the airport, we were given a warm welcome by
the local people.
| A．With | B．For | C．Upon | D．Until |