22. Was it _____the conference of APEC that made Shanghai the focus of the world then?
| A．holding | B．to hold | C．held | D．having held |
Although the first part is easy, the rest ______.
| A．is supported difficult | B．are difficult |
| C．has proved difficult | D．could have been difficult |
Mary’s mother got sick, so she called ______.
| A．her party on | B．of her party | C．her party off | D．on her party |
This project _____ considered thoroughly, and I’m sure it _____ finished on time.
| A．must be; may be | B．should be; can be |
| C．may be; must be | D．can be; should |
When he got off the bus, he found his pocket ______.
| A．stolen | B．picked | C．gone | D．missing |
------ Look, where are you going ?
------ Oh, I’m terribly sorry. ______.
| A．I’m not noticing | B．I wasn’t noticing |
| C．I haven’t noticed | D．I don’t notice |