Yellow Stone National Park, ________in 1872, _________over three million visitors every year, is America’s first and foremost National Park．
| A．establishing, attracted | B．having established, attracted |
| C．established, attracting | D．being established, attracting |
Regular reviewing is __good habit. If you stick to it, you will make great
progress in your study.
| A．a;/ | B．a;a | C．the;a | D．/;a |
—Did you like your trip to Xi' an during the Summer vacation?
—____．It was too hot and there was too much traffic．
| A．Not a little |
| B．Don' t mention it |
| C．Not really |
| D．'Not exactly |
She couldn' t find her son_ she had dropped him off．
| A．when | B．until |
| C．although | D．where |
33．I told them not everybody could pass the test,____?
| A．could he | B．didn't I |
| C．didn't you | D．could they |
—When shall we start the reconstruction of the old buildings?
—Not until_ by the local government．
| A．will our program be approved |
| B．our program will be approved |
| C．has our program been approved |
| D．' our program has been approved ' |