______ when to leave, I could only stay at home, _____ nothing.
| A．Knowing not; done | B．Not having known; doing |
| C．Having not known; done | D．Not knowing; doing |
He had never envied the rich＿＿＿money．
| A．his | B．their | C．one’s | D．her |
The young often＿＿＿the old in our town．
| A．helps | B．wants to help | C．help | D．helping |
＿＿＿＿＿a wonderful sense of humour．
| A．The English have | B．The English has |
| C．English have | D．English has |
—Do you think we can get there on time?
—Yes,_________ the bus does not break down.
A.even if .unless C.until D.so long as
It wasn’t ________ they found that there was much trouble ________ the plan.
| A．long before; to carry out | B．long before; carrying out |
| C．before long; with carry out | D．before long; in carrying out |