It was April 29, 2011_____ Prime William and Kate Middleton walked into the palace hall of the wedding ceremony.
| A．that | B．when | C．since | D．before |
Was it in 2002 __________ he was still at middle school __________ the boy became expert at computer?
| A．that; where | B．when; where | C．that; when | D．when; that |
You can’t imagine what difficulty we had home in the snowstorm.
| A．walk | B．walked | C．to walk | D．walking |
—How many times have you been to China?
—In fact, it is the first time I __________ here.
| A．have been | B．am | C．had been | D．was |
Knowing the result of the exam, he went home and lay in bed,.
| A．upset | B．was upset | C．felt upset | D．and upset |
Jack asked John ______ when he met him in the street.
| A．he was going where | B．where he was going |
| C．where was he going | D．was he going where |