Then Wang Ping flashed a switch on a computer screen，and a table and some chairs rose from under the floor       by magic.

A．only if

B．even if

C．a(chǎn)s if

D．what if

The little boy won’t go to sleep_______his mother tells him a story.

A． or

B． unless

C． but

D． whether

______I understand your viewpoint, I don’t agree with it.

A．Unless

B．Since

C．Before

D．While

She missed the plane, ________driving very fast to the airport.

A．despite

B．unless

C．though

D．without

______ and you will be admitted into your desired university.

A．If making one more effort	B．If you make one more effort
C．One more effort	D．To make one more effort

Jane was dressed in red ______ Joe was dressed in blue.

A．however

B．when

C．while

D．a(chǎn)s

Many of them turned a deaf ear to his advice,        they knew it was useful.

A．a(chǎn)s if

B．now that

C．even though

D．so that、

He told me that he was into many sports            swimming, shooting and skating.

A．a(chǎn)s

B．for example

C．such as

D．such like

______ his timely help, Kate overcame the hardship at last.                                                                                                                                                                                                                                                                                                                                                                                                                         

A．Now that

B．Thanks to

C．Since

D．Because

I’m sorry you’ve been waiting so long , but it will be an hour       David gets back .

A．before

B．since

C．till

D．a(chǎn)fter