.I would be very glad to help, ___ I’m going away on business.
| A．and | B．or | C．for | D．only |
I ____ go to bed ____ the telephone rang.
| A．was about to, when | B．was going to, while |
| C．would, when | D．was to, while |
You may ask the teacher for help ____ difficulty.
| A．in case of | B．in the case of | C．in any case | D．in no case |
The train ____ at present speed until it reaches Beijing.
| A．is running | B．will be running | C．will have run | D．has run |
Before becoming a pilot, he spent quite a long time ____.
| A．to be trained | B．being trained | C．training | D．to train |
Yang Liwei’s journey into ____ space took him 600,000 kilometres in ____ orbit, around the earth 14 times, in just over 21 hours.
| A．a, an | B．the, an | C．不填，不填 | D．the, the |