Please hold on to _____you are strong and try to improve the weak subjects.
| A．when | B．where | C．what | D．which |
_______ any other species, human populations are shaped by the usual forces of natural selection, like famine, disease or climate.
| A．Compared with | B．As with | C．As for | D．In addition to |
— I’m terribly sorry to keep you waiting for so long.
— _______.
| A．Never mind. | B．That’s right. | C．You are welcome. | D．Don’t mention it. |
It’s extremely dangerous for the drivers to _______ speed as the traffic lights are changing.
| A．pull up | B．put up | C．rise up | D．pick up |
The government is now trying to provide _______ health benefits to all citizens in China.
| A．significant | B．universal | C．temporary | D．professional |
With more than 17000 islands, _____ only 6000 are inhabited, Indonesia is the world’s largest archipelago (岛国).
| A．on which | B．for which | C．of which | D．along which |