All these gifts must be mailed immediately__________ in time for Christmas.
| A．in order to have received | B．in order to receive |
| C．so as to be received | D．so as to be receiving |
The president of the World Bank says he has a passion for China, ______ he remembers starting as early as his childhood.
| A．that | B．which | C．as | D．when |
_____ according to the instructions, the robot can behave like a human being with average IQ.
| A．When to operate | B．When operating |
| C．When to be operated | D．When operated |
The door _____ open, no matter how hard she pushes.
| A．doesn’t | B．can’t | C．won’t | D．shouldn’t |
When I first met Doris I didn’t like her, but I ______ my mind.
| A．have changed | B．change | C．had changed | D．would change |
An air crash accident happened to the plane, ______.
| A．nobody alive | B．nobody was alive | C．and nobody alive | D．where nobody alive |