________ we stand; ________ we fall.
| A．United ; divided | B．United ; dividing | C．Uniting ; dividing | D．Uniting ; divided |
The exhibition tells uswe should do something to stop air pollution.
| A．where | B．why | C．what | D．which |
Andy is content with the toy. It is he has ever got.
| A．a better | B．the better |
| C．a best | D．the best |
There is only one more day to go your favorite music group play live.
| A．since | B．until | C．when | D．before |
Brian is gifted in writing music; he is very likely to beBeethoven.
| A．a | B．an | C．the | D．不填 |
More expressways in Sichuan soon to promote the local economy.
| A．are being built | B．will be built |
| C．have been built | D．had been built |