When the plane arrived, some of the detectives were waiting inside the main building ________others were waiting on the airfield.
| A．during | B．where | C．which | D．while |
The road ______ for vehicles is under repair. Drivers are required to take some other routes.
| A．meaning | B．meant | C．to mean | D．being meant |
—When shall we go planting trees in the hill?
—______ it begins to rain, so they don’t need watering.
| A．Not until | B．While | C．Till | D．Unless |
World Expo 2010 Shanghai China, a grand-scale global event, has ______ the significant theme “Better City, Better Life.”
| A．abandoned | B．adopted | C．advocated | D．adapted |
Life is like a long race ______ we compete with others to go beyond ourselves.
| A．why | B．what | C．that | D．where |
—It’s so nice to enjoy the sunshine here on the green grass.
—You ______ us a right place.
| A．had introduced | B．are introducing |
| C．have introduced | D．introduce |