We must find out ____ Karl is coming, so we can book a room for him.

A. when B. how

C. where D. why

A ship in harbor is safe, but that’s not ______ ships are built for.

A. what B. whom

C. why D. when

If you swim in a river or lake, be sure to investigate is below the water surface. Often there are rocks or branched hidden in the water.

A. what B. who

C. that D. whoever

Reading her biography, I was lost in admiration for Doris Lessing had achieved in literature.

A. what B. that

C. why D. how

_____ Li Bai, a great Chinese poet, was born is known to the public, but some won’t accept it.

A. That B. Why

C. Where D. How

_____we understand things has a lot to do with what we feel.

A. Where B.How

C.Why D. When

--- Is it true that Mike refused an offer from Yale University yesterday?

--- Yeah, but I have no idea _______ he did it; that’s one of his favorite universities.

A. when B. why

C. that D. how

Some people believe _______ has happened before or is happening now will repeat itself in the future.

A. whatever B. whenever.

C. wherever D. however

语法填空。

One day, about ten years ago, while working at the cash register in the gift shop at my University Museum of Natural History, I saw 1. elderly couple come in with a little girl in a wheelchair. As I looked 2. ( close ) at this girl, I found that she was fixed on her chair. I then realized she had no arms or legs, just a head, a neck and upper body, 3. ( dress ) in a little white skirt. As the couple wheeled her up to me, I turned my head toward the girl. When I took the money from her grandparents, I looked back 4._ the girl, who was giving me the most optimistic, largest smile I had ever seen. All of a sudden, her handicap was gone and all I saw was this beautiful girl, 5. smile just melted me 6. almost instantly gave me a completely new sense of 7. life is all about. She took me from a poor, unhappy college student and 8. ( bring ) me into her world; a world of smiles, love and 9. ( warm ). I’m a successful business man now and whenever I think about the troubles of the world, I think about that little girl and the remarkable lesson about life that she taught 10. .

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

A. It; that B. What; because

C. What; that D. Which; because