He is such a good salesman that he finally managed to make the customers________of the qualityof the car [ ]

real _______, it willbe well worth putting into practice, I suppose.

The customs office isyour luggage is inspected when you enter or leave a country. A．where B．when C．why D．who

Premier Zhou Enlai for many years， he still lives in the hearts of Chinese people.

______seems to be no possibility that the student majoring in liberal-arts can win the first prize in the100-meter race[ ]