_________ you’ve got a chance, you might as well make full use of it．

A．Now that

B．As if

C．Even if

D．As soon as

The hotel is always full of people because it offers a friendly _________ and personal service．

A．surface

B．atmosphere

C．system

D．appearance

In this _________ conflict, about 20 common people were killed．

A．gentle

B．violent

C．fundamental

D．harmful

The harm the modern farming methods have done _________ the countryside is considerable．

A．on

B．at

C．to

D．for

Our school covers an area of 400 mu, which is _________ as yours．

A．twice as big

B．twice bigger

C．twice the size

D．twice the big

Do you know that _________ with wise men improves your mind?

A．chat

B．chats

C．chatted

D．chatting

Only _________ a human being．

A．when is it hungry a lion will attack

B．when it is hungry a lion will attack

C．when it is hungry will a lion attack

D．when is it hungry will a lion attack

You’ve done much of the work, and please leave _________ to us．

A．the rest

B．the other

C．another

D．the others

The experts advise _________ our army _________ modern weapons．

A．to equip; with

B．equipping; with

C．to equip; for

D．equipping; for

It _________ at the crossroads _________ he was killed in the accident the other day．

A．is; which

B．was; that

C．is; where

D．was; where