Even though they have worked side by side in the same office for 9 years, the two ladies ______ on good terms.
| A．are not | B．were not | C．have not been | D．will not be |
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 |
— I hear that Mary is ______ to stay with us for a few days. —That’s great.
| A．Maybe | B．possible | C．likely | D．probable |
It was between 1830 and 1835 ______ the modern newspaper was born.
A how B that C which D because
—I’m sorry to say this, but the room here is very dirty.
—______. I will ask someone to clean it right way.
| A．It’s all right | B．Sorry to hear that | C．Never mind | D．Thank you all the same time |