The managers discussed the plan that they would like to see ________ the next year．

A．carry out

B．carried out

C．carrying out

D．to carry out

I always like to keep my reference books ________．

A．where I can easily find them

B．at the place where I can easily find

C．no matter where I can easily find them

D．where ever can I easily find them

Tim is from Australia and now he works here in New York．During some holidays, he often stays with ________．

A．his a few friends

B．a few friends of him

C．a few friends of his

D．a few his friends

Now at last you’ve come．I ________．

A．wonder where you were

B．had wondered where you had been

C．was wondering where you were

D．wondered where were you

While getting packed for his trip to South Africa, Mr．Turner found another small suitcase of his missing．He wondered where he ________．

A．could have left it．

B．must have left it

C．should have left it

D．would have left it

Hearing the sound of a gun, the frightened wild birds flew in ________ directions．

A．every

B．either

C．all

D．no

In most countries today, either paper or things made from metal ________ recycled for further use．

A．is

B．has been

C．will be

D．are

Trees are plants．They are usually tall and have a main stem called a trunk．They come ________ many colors and sizes．

A．on

B．in

C．of

D．for

It was at this shop ________ I came across one of my old friends．

A．which

B．that

C．where

D．in which

His father told me that he ________ for the United States three days ________．

A．has left; ago

B．had left; ago

C．left; ago

D．had left; before