The tasks are not easy, but they are usually ___ within 20-30minutes.
| A．accomplished |
| B．achieved |
| C．recognized |
| D．accepted |
．—I finished all my work today．
—If____, you can help others with their work．
| A．so | B．not | C．possible | D．ever |
I would rather you ____with us yesterday, but you left．
| A．had stayed? | B．stay | C．stayed | D．have stayed |
．There has been a（n）____of sadness in the small town since a boy was drowned in the river．
| A．scene | B．atmosphere |
| C．condition | D．appearance |
—Dear, you water the garden and I do the cooking．
| A．Why me? | B．Forget it． | C．No way． | D．Ok, that's settled． |
—How does the Internet ____us?
—By sharing information free of charge．
| A．educate | B．improve | C．limit | D．benefit |