—Liu Xuan, did you see the Denmark’s famed “Little Mermaid” sculpture in Shanghai Expo?
—No, I didn’t. I _______ it twice in Denmark.
| A．have seen | B．were seeing | C．had seen | D．saw |
They ___________to put their hearts into study..
| A．have made their minds | B．have made their mind |
| C．have made up their minds | D．have made up their mind |
When _____ about one of the biggest concerns today, many citizens mentioned the sharp rise in housing price.
| A．asking | B．to ask |
| C．asked | D．having asked |
It was a _______story, and we all got ________.
| A．shocking; shocking | B．shocked; shocked |
| C．shocking; shocked | D．shocked; shocking |
--- Hey, Mary, your backpack looks nice. When did you buy it.
--- I ____ it for two weeks.
| A．had | B．bought |
| C．have had | D．have bought |
The snowstorm ________ our difficulties.
| A．added to | B．added up |
| C．added up to | D．has added |