Have a ________ of these apples. They are sweet and delicious.

A. look

B. taste

C. smell

D. sight

Though I spoke to him many times, he never took any ________ of what I said.

A. remark

B. observation

C. attention

D. notice

More and more people choose to shop in a supermarket as it offers a great ________ of goods.

A. variety

B. mixture

C. extension

D. combination

The collapse of the World Trade Center has put US economy in a difficult ________.

A. occasion

B. case

C. situation

D. background

The manager has got a good business ________ so the company is doing well.

A. idea

B. sense

C. thought

D. thinking

“I don't think it's my ________ that the TV blew up. I just turned it on, that's all,” said the boy.

A. error

B. mistake

C. fault

D. duty

—I'm sorry I stepped outside for a smoke. I was very tired.

—There is no ________ for this while you are on duty.

A. reason

B. excuse

C. cause

D. explanation

Cold-blooded animals，　　  snakes and frogs have to go to sleep in winter．

A．for example    B．such as    C．for instance   D．such like

It was a matter of　　  could take the position．

    A．who    B．whom    C．whomever    D．whoever

The famous basketball star,　　    tried to make a come back, attracted a lot of attention.

A. where　　　　 B. when　　    C. which　　　　 D. who