Tom took a taxi to the airport, only _______ his plane high up in the sky.
| A．finding |
| B．to find |
| C．being found |
| D．to have found |
In the 21st century, all nations must take their ________of responsibility for the global safety.
| A．blame | B．charge | C．notice | D．share |
-----How good the news is for you!
------ ______________.
| A．You are friendly to tell me | B．It's kind of you to say so |
| C．I'm glad to see that | D．It's nice to hear from you |
What worried the mother most was __________ the Internet after class in this school.
| A．her son’s not forbidding surfing | B．her son’s not being forbidden to surf |
| C．her son’s being not forbidden to surf | D．her son’s having not forbidden surfing |
------- Jack, you erase the blackboard today, __________?
------- But I did it yesterday.
| A．will you | B．do you | C．would you | D．don’t you |
To me, cycling at ___ altitude of more than 4,000 meters was _____ unforgettable experience.
| A．the; an | B．an; an | C．/; a | D．an; / |