. ---Is Bob still performing? ---I’m afraid not. He is said ______ the stage already as he has become an official.
Reading books is very important for developing the students’ understanding of the world, ____?
Heating the news that my father was ill,I was so worried that I couldn’ton anything.
The reason ______ he gave for not coming was ______ his mother wouldn’t allow him to.
--It’s reported that scientists have ________ an effective way to deal with H1N1. --Really? That’s great!
Every time ______ they met , they would talk several hours together about the persons and things _______ they remembered in the middle school.