I think that's unlikely to happen, but if that ______ occur, both America's and China's interest would be severely damaged.
| A．should | B．could | C．would | D．might |
______ we talk to each other, I feel happy.
| A．Every time when | B．Every time that |
| C．Every time | D．Every time which |
The woman insisted that she ______ the mobile phone but none of the supermarket guards would believe her.
| A．should not have stolen | B．should not steal |
| C．not have stolen | D．had not stolen |
The finance minister has not been so _____ since he raised taxes to such a high level.
| A．popular | B．well-known | C．favorable | D．preferable |
The US federal government has released 252 applications so far, ______ fields including education and health care.
| A．covered | B．to cover | C．covering | D．having covering |
This is a kind of effective classroom teaching ______ students learn independently and cooperatively.
| A．where | B．which | C．what | D．when |