By the 2030s most people can to live at least 80, which is a big leap for mankind.
| A．expect | B．desire | C．want | D．demand |
The traffic slowed down because of the heavy snow in Yushu County, presenting a new _____ to the discovery from the earthquake.
| A．suffering | B．disaster | C．damage | D．challenge |
She has waited for the guest for two hours and reached the ________ of her patience.
| A．limit | B．top | C．point | D．need |
Now, thanks to the government’s quick reaction, thousands of children who would otherwise have died___________.
| A．would be saved | B．are saved |
| C．had been saved | D．have been saved |
－You couldn’t have chosen a better way to solve the issue, I think.
－________________.
| A．Well, nothing much | B．Oh, don’t complain about it |
| C．Sorry, but I’ll find a better one | D．Thanks a lot. |
The scientists are able to ____________ accurately when the spaceship will reach the moon.
| A．accumulate | B．calculate | C．appoint | D．estimate |