Polar bears live on sea ice, which they use as a platform for hunting seals.
| A．most | B．almost | C．nearly | D．mostly |
（届吉林省延边州高三下学期质量检测英语试卷）
________ you don’t know is that I spend ________ little time I had with my kids.
| A．That; that | B．What; how | C．What; what | D．That; how |
（届安徽省桐城市第十中学高三上学期第三次月考英语试卷）
_______ she was invited to the ball made her very happy.
| A．Whether | B．That | C．Because | D．What |
（2014届浙江省建人高复高三上学期第五次月考英语试卷）
It never occurred to me _____ you could succeed in persuading him to change his mind.
| A．which | B．what | C．that | D．if |
（届湖南省十三校高三3月第一次联考英语试卷）
_____ is well known to the world is that China has very top technology in space industry．
| A．It | B．As | C．What | D．Which |
（届福建省莆田市高三3月质量检测英语试卷）
It is not immediately clear __________ the housing price will go down.
| A．how | B．what | C．that | D．whether |