Ⅰ.用适当的连接词填空
1．________ interested me most was how the man escaped from Cuba and made his way to Miami.
答案： What
2．________ her son came back safely made Mrs Wang feel relieved.
答案： That
3．________ will be in charge of the project is quite important.
答案： Who
4．________one is the healthiest is uncertain.
答案： Which
5．________ Mr Green will return from China by plane hasn’t been decided yet.
答案： When/Whether
6．________ Bob got such important information is still a mystery.
答案： Where/How/When
