29. ______ in the sports world, a sportsman needs to train constantly to keep himself in best condition.
| A．Survive | B．Surviving | C．To survive | D．Survived |
Do you know why Nelson Mandela _________ violence to make black and white people equal?
| A． turn in | B． turn out | C． turn to | D． turn over |
He was a kind teacher _________ I went for advice.
| A． to whom | B． whom | C． to who | D． who |
Until today some black people_________ a stage _________ they have almost no rights at all.
| A． reached ; which | B． have reached ; where |
| C． reached ; where | D． had reached ; in which |
The time _________ I first spend with Nelson Mandela was a very difficult period of my life.
| A． when | B． which | C． of which | D． at which |
The parks will also honor _________ who helped the survivors as well as who died in the terrible disaster.
| A． them. | B． those | C．ones | D．it |