________ you apologize and take back what you said ________ it is all over between us．

A．Either; or

B．Neither; or

C．Either; nor

D．Neither; nor

He promised to come but he hasn't ________ yet．

A．turned in

B．turned up

C．turned on

D．turned over

I can hardly hear the radio．Would you please ________?

A．turn it on

B．turn it down

C．turn it up

D．turn it off

She didn't ________ the office yesterday．

A．attend

B．attend to

C．attend on

D．attend upon

Though I feel ________ tired, I went on working．

A．a bit

B．a bit of

C．a little of

D．not a bit

After the long journey, we are ________ tired．

A．not a bit

B．not a little

C．a bit

D．not a bit of

He is very scared to see the wind ________ and he hurried into the nearest hotel to protect himself．

A．blow up

B．blowing up

C．blew up

D．has blown up

________ time goes on, we understand that our life is very nice but sometimes it has some difficulties．

A．As

B．While

C．When

D．Because

He laughed all the way ________ he went home．

A．while

B．as

C．when

D．before

________ modeling business is by no means easy to get into, the good model will always be in demand．

A．While

B．Since

C．As

D．If