－We can use QQ to talk with each other online．－Realy?Could you please show me ________ it?

A．what to do

B．how to do

C．when to do

D．why to do

We’re not sure ________ it will rain or not tomorrow．

A．if

B．whether

C．that

D．why

What can help the police solve a case or find who is the real criminal?

A．Fingerprints

B．Footprints

C．Blood

D．All the above

If you find somebody is murdered, what will you do first?

A．Cry loudly

B．Call the police

C．Look for the murderer

D．Bury the victim

He was ________ with breaking ________ several computer systems．

A．charging; on

B．to charge; in

C．charged; into

D．charges; to

The robber was guilty ________ computer crimes in the past．

A．of

B．from

C．off

D．on

He has changed a lot ________ the last few years．

A．on

B．of

C．over

D．about

The police arrived because two young men ________ fights．

A．put on

B．put away

C．put up

D．put down

There are many sharks’ attacks ________ people every year．

A．on

B．of

C．with

D．for

Why ________ you ________ like that?

A．do, wear

B．are, put on

C．are, dressede

D．do, dress