(2012年石家庄质量检测)Once ________，such a chance might never come again.
| A．losing |
| B．lost |
| C．to bo lost |
| D．having lost |
He rushed as fast as he could, ______not to be late for class.
| A．to hope | B．being hoped | C．hope | D．hoping |
Nobody believed a 92-year-old man could run a marathon_______he passed the finishing line. People of all ages can challenge themselves.
| A．if | B．since | C．until | D．unless |
Harry is feeling uncomfortable. He _______too much at the party last night.
| A．could drink | B．should drink |
| C．would have drunk | D．must have drunk |
I have no idea what _____ while I was asleep.
| A．has happened | B．could happen | C．had happened | D．happened |
—Sorry, I am late.
—That’s OK. You are here, that’s what _____
| A．does | B．counts | C．works | D．stays |