____ counts is ____ all those trapped in the building have been rescued.

A. It; that B. What; because

C. What; that D. Which; because

Tom’s most positive quality is _____ he’s very outgoing.

A. that B. why

C. how D. whether

No one knows for certain how the first Americans arrived in _____ is now the United States.

A. which B. what

C. where D. why

won’t change my belief _________ success comes to those who act．

A．that B．which

C．where D．how

I didn't understand _______it meant to him until I was in his place.

A. what B. that

C. how D. which

I still remember _______ the grand school used to be a abandoned airport two years ago.

A. how B. where

C. when D. why

It suddenly occurred to me I hadn’t locked my door．

A．which B．where

C．that D．whether

We're considering students' request ______the school cafeteria should provide more kinds of food．

A． how B． what

C． that D． whether

Everyone is different and that is ________ makes our world so much better.

A. that B. which

C. what D. who

I want to show you is my gratitude and respect for your continuous and selfless help.

A. That B. Which

C. Whether D. What