Since 1949, the peoples living standard _______, causing a big _______ in population.
| A．has been raised; rise | B．has been rose; raise |
| C．has raised; rise | D．has raised; rose |
______ has already been pointed out, grammar is not a set of dead rules.
| A．As | B．It | C．That | D．Which |
There is a mountain ________ the top is always covered with snow.
| A．of that | B．of which | C．whose | D．that |
---Why did the police _____ the crowd?
---Because the presidents car ____ in the street.
| A．break down, broke down | B．break up, broke up |
| C．break down, broke up | D．break up, broke down |
John, as well as the other children who _____ no parents, ________ good care of in the school.
| A．have; is being taken | B．have; has taken |
| C．has; have been taken | D．has; are being taken |