1 . In the past four years, local education departments have trained about 40,000 football teachers , 8,000 of ___________ have obtained coaching certificates. （用适当的词填空）

2 . Li Na used to be a top Chinese tennis player. We consider her a legend. (用定语从句合并)

3 . Camping popularity increases among young people. Most of them are nature lovers. (用非限制性定语从句合并)

4 . These are among the 669 children, most of ________ Jewish, ________ Nicholas Winton will go on to save from death at the hands of the Nazis.

A．them; whom

B．whom; that

C．whom; whom

D．them; which

5 . He attended Jane's wedding, together with his two classmates yesterday, ________ I had met before.

A．that

B．when

C．which

D．whom