I failed the exam ________ I did my best. But I’ll try harder next time.
| A．when | B．until | C．though | D．because |
－ It’s a pity that none of these educational CD-ROMs is suitable for me.
－______. I can show you some others.
| A．That’s all right. | B．Why not say so? | C．No problem. | D．Don’t worry. |
－ It seems to me traveling by plane is dangerous.
－ I don’t think so. ______ planes have the best safety records.
| A．At most | B．At least | C．At last | D．At present |
－ How long ______ here? －Ten minutes. Tim ______ here with me.
| A．are you; has walked | B．were you; walked |
| C．have you been; walked | D．have you been; has walked |
－ Do you know Mr Wang?
－ Yes. He ______ many countries. He has rich life and work ______.
| A．has gone to; experience | B．has been to; experiences |
| C．has gone to; experiences | D．went to; experience |
－ Sorry, Mr White. But the bus was late. － You ______ away if you are late again.
| A．will be sent | B．are going to be sent | C．have been sent | D．are sent |