The professor warned the students that on no account _____________ use mobile phones in his class.
| A． |
should they |
B． |
they should |
C． |
dare they |
D． |
they dare |
I have no idea go there with her.
| A．it is why that he will |
| B．why is it that he will |
| C．why it is that he will |
| D．it is why will he that |
As for the plan some agree while others don’t. I’m one of _____ opposed to it.
| A．whom | B．those |
| C．those who | D．who is |
We have just heard a warning on the radio _____________ a typhoon may be on its way．
| A．what | B．when |
| C．which | D．that |
___________ we can have clean drinking water lies in ___________ effective measures will be taken by the government about water pollution.
| A．Whether；that | B．If；that |
| C．Whether；what | D．If；what |
Love is_____ makes you smile when you are tired.
| A．that | B．what |
| C．it | D．which |