Scientists have found evidence ________ global warming caused the world's first horses to become smaller nearly 50 million years ago.
| A．what | B．that |
| C．which | D．whether |
I've promised to keep it secret so I Can’t really tell you anything——what you know already．
| A．for | B．about | C．of | D．beyond |
I want to buy that kind of cloth because I have been told the cloth———well．
| A．wash | B．Washes | C．washed | D．is washed |
．A study shows that students living in non—smoking dorms are less likely to——the habit of smoking．
| A．make up | B．pick up | C．draw up | D．turn up |
．——is a good chance that he is willing to allow U8 to join in the ball game．
| A．There | B．It | C．That | D．This |
一Have you read this book?
--Yes．But that one is—————————worth reading．
| A．better | B．more | C．best | D．much |