Mum，you really need to have a rest！You ________in the kitchen ever since you came back home three hours ago.
| A．had worked | B．were working |
| C．have been working | D．worked |
It was April 29,2001 ____ Prince William and Kate Middleton walked into the palace hall of the wedding ceremony.
| A．that | B．when | C．since | D．berore |
She has a gift for creating an atmosphere for her students ____ allows them to communicate freely with each other.
| A．which | B．where | C．what | D．who |
Mary was much kinder to Jack than she was to the others,, of course, made all the others upset.
| A．who | B．which | C．what | D．that |
Julie was good at German，French and Russian，all of ______ she spoke fluently.
| A．who | B．whom | C．which | D．that |
Why does she always ask you for help?There is no one else_______,is there?
A .who to turn to B. she can turn to