By the time the tornado ended, more than 700 people ________.
| A．have killed | B．have been killed |
| C．had killed | D．had been killed |
—I don’t like shopping.— Me______. It makes me tired.
| A．too | B．nor | C．also | D．neither |
All visitors to this village______ with kindness.
| A．treat | B．are treated | C．are treating | D．had been treated |
I waited for her at the bus station for two hours, but she never______.
| A．turned on | B．turned to | C．turned up | D．turned down |
Scientists have created GM tomatoes which ______ fresh for 45 days, three times as long as normal tomatoes.
| A．are stayed | B．have been stayed | C．stay | D．stayed |
It is not until we know more about the situation ______ we are able to improve it.
| A．that | B．what | C．when | D．which |