China made a commitment to the world in the Copenhagen Summit that by 2020, the carbon-intensity of its economy ______ fall 40% to 45%.
| A．shall | B．may | C．must | D．should |
Last night he saw two dark_______ enter the building and then there was the explosion
| A．features |
| B．figures |
| C．images |
| D．characters |
In the letter Amy explained to me what_______her liver fail.
| A．caused |
| B．led |
| C．resulted |
| D．made |
The doctor wanted to know_______.
| A．what kind of pills did Amy take |
| B．what kind of pills Amy took |
| C．Amy took what kind of pills |
| D．Amy did take what kind of pills |
Mother bought a lot of things _____ her daughter's birthday party.
| A．in preparation for |
| B．with preparation to |
| C．at preparation |
| D．by preparation for |
---What about the person?
---Few in all my life _____ such a _____ person.
| A．I met; determining |
| B．I have met; determining |
| C．did I meet; determined |
| D．have I met; determined |