The doctor says that you will end up in hospital _________ you go on smoking like that.
A．unless B．if C．because D．until
Could you tell me _________ find another interesting detective story to read?
A．where I can B．where can I C．where I could D．where could I
A stamp is made _________ paper. Do you know what paper is made _________?
A．of; of B．from; from C．from; of D．of; from
We can hardly tell what life without the Internet will be like in the future, _________?
A．can we B．can’t we C．will it D．won’t it
It’ll be a great honour if I _________ to the charity evening party next week.
A．invite B．am invited C．will invite D．will be invited
Some frightening pets _________ be kept home so that they won’t hurt others.
A．can B．may C．must D．need
