After children leave home for university, it’s usually the parents that______ their children, not on the other way round. 
| A．link | B．associate | C．contact | D．touch |
In the school hall, where a meeting , some students are busy preparing for it.
| A．is held | B．has been held | C．is being held | D．is to be held |
the coming English speech competition will be a lot of work, so I need some volunteers to help out.
| A．Organize | B．Organizing | C．Organized | D．Being organized |
Rock-climbing is a breathtaking activity, very popular nationwide among young people,
cooperation as well as courage plays an important role.
| A．who | B．which | C．that | D．where |
Your advice was a great help to us, without which all our efforts .
| A．wouldn’t pay off | B．hadn’t paid off |
| C．wouldn’t have paid off | D．didn’t pay off |
Many memories of old times were by the conversation we had together that evening.
| A．brought up | B．called up | C．kept up | D．set up |