1 . —Have you found your lost camera?
—No, I haven’t found _____, but I bought _____ this morning．

A．one; that

B．it; one

C．that; one

D．one; it

2 . I found ______ hard to plan things for myself.

A．it

B．that

C．this

D．the

3 . Tom, your MP4 is quite nice. How much is _________? I want to buy _________.

A．one; it

B．it; one

C．one; one

4 . ___ knows the way to the hospital so we have to ask the policeman for help.

A．Everyone

B．No one

C．Someone

D．Anyone